查询词典 NASA

Antiparticles are created elsewhere in the universe where there are high-energy particle collisions, such as in the center of our galaxy, but none have been detected that are residual from the Big Bang, as most normal matter is [1] (http://science.nasa.gov/headlines/y2000/ast29may_1m.htm).

有高能粒子碰撞的宇宙其它地方产生了反粒子，例如在我们的银河中心，但是没有发现来自大爆炸剩余物质，如大多数常态物质是[1]。

Antiparticles are created elsewhere in the universe where there are high-energy particle collisions, such as in the center of our galaxy, but none have been detected that are residual from the Big Bang, as most normal matter is [1] ( http://science.nasa.gov/headlines/y2000/ast29may_1m.htm ).

科学家在1995年成功生产了氢的反原子，以及反氘核核子，由一个反质子和一个反中子生成，仅仅还不能是更为复杂的反物质。

Secondly, UFO proponents say that if NASA did NOT release them, then everyone would holler "coverup," and they were hiding UFOs.

其次，飞碟支持者说，如果美国航空航天局并没有公布他们的话，每个人都会奥莱&掩盖真相&，他们都躲在不明飞行物。

NASA conducts its work in four principal organizations, called mission directorates

国家航空局在四个重要的组织中控制着他们的工作，命名使命董事会

Since the association has changed name from NASA to HKUSUA, colleagues from different gradings have

月23 日旧香港大学职员协会，在其最后一次的周年大会上，宣布结束其37 年的

NASA and its partners in the International Space Station have agreed in principle to let a 28-year-old South African become the second paying tourist on the orbiting outpost, the U.S. space agency3 said on Tuesday. Internet magnate Mark Shuttleworth signed a contract on Dec. 4 with the Russian Aviation and Space Agency to fly aboard a Soyuz space taxi to the station in April 2002, almost exactly a year after U.S. millionaire Dennis Tito became the first to experience space as a paying guest.

美国航天局周二说，国家航空航天局和它在国际空间站的合作伙伴已原则上同意，让一位28岁的南非人成为第二名付费的太空旅游者。12月4日，因特网巨头Mark Shuttleworth与俄罗斯航空航天局签定了协议，，他将于2002年春天搭乘Soyuz号太空的士到达空间站，这与首位付费太空旅游者美国巨富Dennis Tito的太空之旅相隔几乎整整一年。

I think the advice that I would give to any kids who want to be astronauts is to make sure that they realize that NASA is looking for people with a whole variety of backgrounds: they are looking for medical doctors, microbiologists, geologists, physicists, electrical engineers.

我认为我会提所有孩子想要是宇航员是确信的建议，他们意识到美国航空航天局寻找人以背景整体品种：他们寻找医生，微生物学家，地质学家，物理学家，电机工程师。

But in the more immediate future,(10) in addition to pilots and scientists, NASA will need to recruit geographers, oceanographers, astronomers and medical doctors.

但是在不久的将来，除了飞行员和科学家之外，国家航空航天局还需要招募地理学家、海洋学家、天文学家和医生。

NASA has given extra attention to any damage to the shuttle's heat shield tiles.

太空总署已经格外注意太空梭隔热瓦遭受的任何损害。

NASA documents commonly refer to him as H.S. Tsien.

美国航天局的文件通常称他为房协Tsien。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。