For the crew of a spacecraft ramping up to light speed, interstellar space would appear highly compressed, thereby increasing the number of hydrogen atoms hitting the craft.

对宇宙飞船的船员来说，速度升高到光速，宇宙空间将被高度压缩，因此增加了撞击飞船的氢原子数量。

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One or two optical units can be fitted into the cockpit to suit the number of crew members onboard the aircraft.

根据飞机驾驶员人数的不同，可以选择在座舱内安装一套或是两套光学系统。

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None of the 147 passengers nor the unspecified number of crew members were injured.

机上147名乘客和数目不明的机组人员均未受伤。

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"The safety and comfort of passengers and crew is always our number one priority, " a spokesperson for the company added.

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The Airbus A320 was carrying 147 passengers and an unknown number of crew members, according to the National Transportation Safety Board.

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The arrival of Russians Pavel Vinogradov and Alexander Misurkin and Chris Cassidy of the US brings the number of crew at the ISS to six.

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