1.
a quantity of explosive to be set off at one time.
一次发射用的炸药量.
2.
A Washington rocket scientist tells about a launch that was postponed many many times. Finally everything seemed right.
Washington火箭科学家说一次发射推迟许许多次。一切似乎终于好了。
3.
An electrode used in certain electron tubes to provide secondary emission.
中间极，二次发射电极一种用于一定电子管作第二次发射电极
4.
single shot or volley of shots from one or more guns;ammunition for this
（枪炮的）一次射击或群射；一发子弹或炮弹
5.
Three days after launch, an explosion damaged the spacecraft.
发射三天后，一次爆炸损坏了航天器。
6.
What sd the year when China first launchf her man - made satellite ?
中国首次发射人造地球卫星是哪一年?
7.
transmission type secondary emitter
透射型二次电子发射极
8.
excessive shot
多射(发射次数超过规定)
9.
Low target accuracy is compensated or with several missiles per salvo.
这补偿了它射击精度低和一次齐射只能发射几枚火箭弹的不足。
10.
secondary emission
ph.1. 【电】二次发射,次级发射
11.
The residual nucleus will, in general, undergo a radioactive transformation.
剩余核一般说来将发生一次放射性衰变。
12.
That system has had five successful tests out of10, with the last successful test in2002.
陆地导弹拦截系统已经试射10次，成功5次，最后一次成功发射在2002年。
13.
secondary emission multiplier
二次发射电子倍增管
14.
electronic jamming over a wide range of frequencies simultaneously.
多次同时发射的电子干。
15.
The year 1998 also saw the successful launching of 6 satellites.
全年６次成功发射卫星。
16.
a gun that is discharged once every minute (usually as part of a military funeral).
一种每分钟发射一次的大炮（经常作为军事葬礼的一部分）。
17.
launch a blow, a missile, a torpedo, a satellite
发出一击、 发射导弹、 发射鱼雷、 发射卫星
18.
Disposable Aseptic Syringe
一次性使用无菌注射器