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上海黄浦区第九人民医院疤痕多少钱健爱问上海武警总医院去痘多少钱

2019年11月15日 15:08:35
来源:四川新闻网
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On a previous show we mentioned how not all shooting stars have the same speed.前面的文章中我们提到为什么不是所有流星都有相同的速度。Some disappear almost immediately, while others make a nice slow line across the sky.有些几乎立即就消失了,而有些拖着长长的尾巴穿过天空。If you enjoy watching the slow ones, there is a way of upping your chances of seeing them.如果你喜欢观看缓慢的流星,那么有一种方法可以增加你看到它们的几率。Go out just after sunset.日落后就出门。Thats because the slowest meteors come in the evening and the fastest ones come in the morning, just before sunrise.最慢的流星在夜晚出现,最快的流星出现在早晨,就在太阳升起之前。Can you guess why?你猜猜为什么呢?The speeds of meteors we see are increased or decreased by the earths motion.我们看到的流星的运动速度随着地球的运动情况而增减。If we charge into them head-on our speed is added to their speed.如果地球正对着流星的方向运动,那么我们的运速就会增加至它的运动速度中。If, on the other hand, we aremoving away from them, our speed is subtracted from their speed.反之,如果我们背向它们运动,那么它们的运速中就会减去地球运速这一部分。Now imagine yourself standing at the north pole, facing the direction the earth is moving through space.现在想想你自己站在北极,面向地球穿过空间移动的方向。You rise up magically, far enough away that you can see the whole planet rotating underneath you while you yourself remain stationary.你奇迹般地上升,远到可以看到整个地球在你的脚下转动,而你自己保持静止。Which direction is it turning?它是在向哪个方向运动呢?Counterclockwise. Where is thesunlight?逆时针。太阳光在哪里呢?From your perspective, its on the left side of the planet.从你的角度来看,在地球的左侧。That means that the front of the planet, or the part thats charging into oncoming meteors, is the placewhere morning is beginning for people on earth.这意味着在地球的前端,或者是在正对流星运动的地方,就是早晨的开始。The back of the planet, meaning the part thats movingaway from meteors, is where evening is beginning.地球的背面,也就是背向流星运动的地方,就是夜晚的开始。It may seem funny, but every morning when you look up into the sky, you are looking in the same direction as the planet is moving.这似乎非常有趣,但是每天早晨当你仰望天空时,你就是望着与地球转动相同的方向。In the evening you are looking the other way.晚上,你就是望着相反的方向。And the speed ofshooting stars confirms it!流星的速度实了这一点。 201411/343639上海割双眼皮要价格New data from NASA indicates that Pluto has a massive amount of water on the surface frozen as ice.美国航空航天局的新数据表明,冥王星表面存在大量冻结水。A false-color image map derived from infrared observations shows an abundant area of water ice on Plutos surface.来自红外观测的假色图像显示,冥王星的表面有大面积水冰。Using a spectral array instrument, NASA discovered that the water on Pluto is also mixed with frozen methane, nitrogen, and carbon monoxide.使用光谱阵列仪器,美国航空航天局发现,冥王星上的水也混合冻结的甲烷、氮和一氧化碳。The data was collected during a July fly-by of the distant celestial object by the New Horizons spacecraft.数据收集于“新地平线号”宇宙飞船,其在七月对这个遥远的天体进行近飞探测。译文属。201601/424797浦东新区周浦医院祛眼袋手术价格费用The answer may have reviewed itself after heavy rains, soily erosion uncovered the entrance to a dark tunnel with a passage way that seemed to head down towards the valley below.磅礴大雨后,解答似乎自己显现,土壤侵蚀暴露出一条暗道直通下面山谷。This secret tunnel would eventually proved to be useful, not just as transport, but for the survival of the entire kingdom, but perhaps the greatest revelations on Guge were found here, within this nearly inaccessible structure are clues that hint what life in Guge must have been like.王族依靠这条暗道从下方运送物资时,这条通道提供了安全与掩护,这条暗道不仅用在运输上,也是整个王朝存活的关键,但古格王朝最重要的发现或许就在这里,燥的山风保护着在这个几乎无法进出的建筑中埋藏着可窥探古格王朝生活样貌的线索。This is the red temple, behind these ancient doors, some of Buddisms finest murals tell a story of one of the greatest civilizations in Asia, one that in its heyday was unsurpassed across the Himalayas.这是红殿,在这些古老的门后面精致的佛教壁画述说亚洲最伟大的文明之一,在全盛时期整个喜马拉雅山区无人可比。These murals document life in Guge and present pictorial history of this once great kingdom.这些壁画记载古格王朝的生活述说这个繁华一世的王朝盛衰。The murals of Guge are simply stunning, not only as great artwork, but they encapsulate the experience of the kingdom, its culture, its people, its society, the ways in which they did business, the ways in which they moved about and traded, these are all represented in the mural, this is not merely artwork, this is history in visual form.古格王朝的壁画相当惊人,它们不只是伟大的艺术品,同时也浓缩了整座王朝的经验它的文化 它的人民,它的社会,他们做生意的方式以及过去是如何迁移和交易一切全都呈现在这壁画上头,这些不单是艺术品,这些是以视觉形式呈现的历史。Over the centuries Tibet and its people have seen great upheavals, it began as a unified empire, then around the year 850, the empire fell apart after a series of brutal civil wars.过去几世纪西藏及西藏人民见了大动乱开始时是统一的王国。 译文属201602/424967Because of the Flint water crisis, the U.S. EPA wants more transparency about where the nations lead lines are. Specifically, the EPA wants to know how many lead service lines there still are underground, and they want to know exactly where they are. As we reported Tuesday, many Michigan cities do not know this basic information, its not just Flint.The EPA also wants water systems to post the results from water tests to prove cities are in compliance with the Lead and Copper Rule.This week, the Michigan Department of Environmental Quality gave the feds an update on these requests.In a letter to the EPA, MDEQ officials say theyre closing some well-known loopholes in the way many Michigan cities test for lead. Specifically, theyre recommending cities use large-mouthed water bottles to collect water samples and theyre getting rid of a recommendation to flush water lines for a few minutes before it sits overnight for sampling the next morning.Theyre hiring a corrosion control treatment specialist, to help communities who need technical expertise. MDEQ is also asking cities to prove theyre testing at the homes theyre supposed to; these are typically homes with lead service lines or lead solder.Before the Flint water crisis, MDEQ used to just trust cities when they said theyre testing the highest risk homes. That came back to haunt them in Flint, because the city was not testing the right homes.The EPAs request for increased transparency for the public is proving to be more ;controversial.;The EPA maintains cities should aly know where and how many lead lines they have. But the agencys request goes further than that. The EPA would love to see cities post this information online: how many lead lines there are in a city, a map of where they are, even the results from those individual high risk homes where testing is done once every few years.MDEQ says it is aly hard for cities to get enough people living in these higher risk homes to do this testing. Theres no forcing them. These people volunteer. MDEQ says that posting the test results from those homes online, in such a public way, ;may result in further difficulty getting residents to participate in the sampling.;The state isnt the only one concerned about peoples privacy. Many water system operators weve talked to over the past few weeks said the same thing.Jeff Castro, the director of Ypsilanti Community Utilities Authority, brought this up. He says residents should be able to find the make up of their own service line. But in Ypsilanti, there are only about three dozen lead lines left.;I feel pretty strongly that thats information for our customers only. I dont think theres any need to apply three dozen customers online so 25,000 other customers can see where they dont want their children to play at or a house they dont want to buy,; Castro said.Castro says if they had way more lead lines or none at all hed be more comfortable putting this information on the web, because it wouldnt single certain homes out as badly. If the EPA mandates that the information be posted, hed comply. But for now, thats not something hes willing to do.Privacy isnt the only concern. Some people were worried about security; there was talk of potential terrorists using water system maps to do harm. Others were worried about property values. One guy worried that someone could make a quick buck if they had a list of homes with lead service lines and went around scaring them into spending thousands of dollars to replace the line.Still, others arent that worried at all.Art Krueger supervises Traverse Citys water treatment plant. He says they aly have a digital map of their water system (to his knowledge, Traverse City doesnt have any lead service lines on city property - although there could be some on private property). He says it wouldnt be that hard for them to post the information online. He understands some people might have privacy concerns, but he says you could get ahold of the lead test results if you filed a public records request.;Its public information likely anyway. If someone wanted to really find out what addresses we were testing, correspondence is going back and forth to the DEQ; they could probably get a copy of those addresses.;Regulators and operators ar0e trying to hash out a middle ground where theres increased transparency without compromising too much privacy. That said, this business of posting information online, this is all a request from EPA. It is not a mandate. Changes in federal law are coming next year, but its not clear this increased transparency will be a part of that.201604/436151上海市浦东新区周浦医院整形中心

奉贤镭射去痘印价格上海玫瑰医院整形口腔美容中心上海市第九人民医院去疤多少钱Tax incentives税收鼓励Sparks fly火花飞舞Georgias breaks for electric vehicles may be too good to last乔治亚州对电动车减税的做法,犹如昙花一现,怕长久不了OLIVIA PEDERSEN thought the Nissan Leaf parked outside her favourite lunch spot near Emory University, must be hers. But she could not open the door. Nor could she open the door of the identical Leaf behind it. Cautiously, she tried the third Leaf in line and happily drove away. More than 14,000 electric vehicles are now registered in Georgia; California is the only state with more. But the juicy state incentives for buying them are coming under attack.埃默里大学附近停着一辆日产聆风,巧的是正好停在奥利薇亚·裴德森(OLIVIA PEDERSEN)最爱的午餐厅门口,她觉得这辆车属于自己。然而,她既开不了车门,也无法打开后面一辆聆风同款车的车门。接着,她小心翼翼地试了第三辆聆风,然后满心欢喜地开走了。如今,在乔治亚州,超过14000辆电动车已注册登记;加州成为全美注册电动车数量最多的州。但是,对电动车购买的福利政策即将遇冷。Residents can claim an income-tax credit for 20% of the cost of leasing or purchasing an electric vehicle, up to ,000. Combined with a possible federal tax incentive worth ,500, savvy Georgians are driving all the way to the bank in nearly-free electric cars. Nissan sells more of its Leaf models in Atlanta than in any other city, according to Don Francis from Clean Cities-Georgia, which promotes the use of cars like these.民众表示收入税中有20%用于租赁或购买电动车,高达5000美元。价值7500美元的联邦税收激励政策或出台,精明的乔治亚人全程驾驶免费的电动车前往。来自清洁城市——乔治亚(Clean Cities-Georgia)的唐·弗朗西斯表示,在亚特兰大州,日产汽车售车数位居全美第一;Clean Cities-Georgia致力宣传这种车的用途。Such trends motivated Chuck Martin, a representative in Georgias House, to sponsor a bill to end state incentives for electric vehicles. He argues that the income-tax credit costs too much—about .6m in 2013—and that only urban types benefit from these sorts of cars. Mr Martins bill was voted down in committee in February, but seems to be still breathing. Another House bill, mostly to finance transport projects, would reduce the credits; it is now before the Senate.乔治亚议院的代表查克·马丁受到了这种潮流影响,并且出资赞助一项法案,内容涉及终结各州对电动车的优惠政策。所得税的信贷费用高昂(2013年达1360万美元),而且只有城市的信贷才能从这些车辆中受益。马丁先生的法案于二月份遭到否决,但似乎还在“苟延残喘”。另一项议院法案,主要目的是为交通项目融资;如此一来,信贷费用减少。目前,该法案摆在参议院面前。Fans of electric vehicles say Georgia now leads the country in clean transport. Local power companies have helped by offering off-peak prices of 1.3 cents per kilowatt hour for charging the cars at night. And the sales tax levied on this power stays in the state, whereas cash spent on petrol largely goes elsewhere, says Jeff Cohen, founder of the Atlanta Electric Vehicle Development Coalition.电动车迷说道,如今,乔治亚州带领全州使用环保的交通工具。当地电力公司也积极响应,并提供低电价即1.3美分每瓦,供居民晚上充电。亚特兰大电动车发展联合公司创始人杰夫·科恩( Jeff Cohen)称,对该电力公司所征收的销售税在该州维持不变,相比之下,其他地方大把银子却花费在汽油上。Cutting the credits altogether might also harm Georgia in other ways. A study by Keybridge Public Policy Economics, a consultancy, says the state could lose 2m by 2030 if they disappear and people buy gas-guzzlers instead. That is because drivers will spend 4m on petrol to get around (in contrast with the 1m they would have paid in electricity bills), and will no longer fritter away their savings from the federal electric-vehicle tax credit in Georgias shops. But the states incentives may be safe in the legislature after all; the president of the Senate drives an electric car himself.对信贷费用的削减有可能在其他方面伤害乔治亚州。咨询机构键桥公共政策经济学(Keybridge Public Policy Economics)的一项研究表明,到2030年,如果电动车消失,人们便青睐“油老虎”,那么该州将遭受损失25200万美元。原因是:驾驶者将花费71400万美元去加油站加油(相较之下,他们只需花费26100万美元在电动车上);同时可以从联邦电动车税收信贷中积攒储蓄。然而,该州的优惠政策在立法过程中终究是安全的,参议院议长自己是骑电动车的。译者:黄柳 译文属译生译世 /201503/366310奉贤区打美白针一针的费用

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