在20世纪60年代早期，研究人员试图将火箭尾部的电线发射到雷云中，以便于为这些雷云产生的巨大电荷建立一个简单的放电路径。
In the early 1960s, researchers tried firing rockets trailing wires into thunderclouds to set up an easy discharge path for the huge electric charges that these clouds generate.
最重要的是，如果这周进行顺利的话，还将有两枚探索宇宙最早期的卫星被发射升空。
On top of that, if the week has gone well, two other satellites intended to probe the universe's earliest days will have been launched.
这些类星体的河外星系是由当黑洞所发射的电子与大爆炸所遗留下来的宇宙背景辐射碰撞后所形成的，它为天文学家提供了关于早期宇宙的线索。
These quasar jets are formed when electrons emitted from a black hole impact with cosmic background radiation left by the big bang, giving astronomers clues about the conditions in the early universe.
早期的移动电话使用模拟信号，他比后来的数字信号手机发射出功率更强的信号。
Earlier mobile phones used analogue signals which emitted higher power signals than the later digital models.
绵甲轻便，并能防御早期火器所发射弹丸的伤害，故在明清时期较为流行。
It was light, portable and able to withstand projectiles launched by early firearms. So it prevailed during Ming and Qing Dynasties.
在有些方面，UWB技术回到了无线电初现曙光和马可尼的早期火花隙发射的时代。
In some respects, UWB technology goes back to the dawn of radio and Guglielmo Marconi's early spark-gap transmissions.
目的：探讨新生儿缺氧缺血性脑病单光子发射型计算机体层摄影显像的特征，并与CT扫描、MRI成像进行比较，为新生儿缺氧缺血性脑病患儿的功能监测和早期干预提供理论基础。
OBJECTIVE: to investigate the character of SPECT image of NHIE, and compared with ct and MRI as well to provide a theoretical gist for function surveillance and early intervention of NHIE.
阿滕伯勒先生说，尽管未来的游客都渴望发射到太空，但没有一个催促要早期飞行的。
Mr Attenborough said that although all of the future tourists were eager to blast off to space, none were pushing for an early flight.
阿滕伯勒先生说，尽管未来的游客都渴望发射到太空，但没有一个催促要早期飞行的。
Mr Attenborough said that although all of the future tourists were eager to blast off to space, none were pushing for an early flight.
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