It was Liu's second space mission and Tang's first.

这也是刘伯明的第二次太空任务，汤洪波的首次太空任务。

China says second space station lab module is ready for launch.

中国表示第二个空间站实验舱已准备好发射。

Second, space. Space is limited. Right?

第二，空间。 空间有限。 正确的？

That's the exciting part about this second space race is it's commercial.

第二次太空竞赛令人兴奋的部分是它的商业性。

The mission, known as Shenzhou-13, meaning " Divine Vessel" in Chinese, will be Zhai and Wang's second space mission and Ye's first.

这次任务被称为神舟十三号，中文意思是“神器”，将是翟和王的第二次太空任务，也是叶的第一次。

Then, if you place a stethoscope in the left second intercostal space, at the left upper sternal border, you can hear the pulmonary valve closing.

然后，你将听诊器放到左第二肋间隙，在左胸骨上缘，你将听到肺动脉瓣关闭的声音。

A recent study by NASA found that solar wind alone causes around 100 grams of gas to be lost to space every second.

美国宇航局最近的一项研究发现，仅太阳风每秒就会导致大约 100 克气体流失到太空中。

That's because the U. S. side of the ISS only has two docks, and SpaceX's Crew Dragon Endeavor is already taking up the second parking space.

这是因为国际空间站的美国侧只有两个对接口，而 SpaceX 的 Crew Dragon Endeavor 已经占用了第二个停靠位。

For the tiniest fraction of a second, space inflated hugely, far faster than the normal expansion, increasing in size by something like a hundred trillion trillion times!

在极短的时间内，空间急剧膨胀，比正常的膨胀速度快得多，其体积增长了大约100万亿倍！

This lasted for around 40 minutes and was the second space lecture of mankind following the first by NASA astronaut Barbara Radding Morgan in 2007 from the International Space Station.

这持续了大约 40 分钟， 是继 2007 年 NASA 宇航员芭芭拉·拉丁·摩根 (Barbara Radding Morgan) 在国际空间站举办的第一场人类太空演讲之后的第二次人类太空演讲。

If you place a stethoscope between the second and third rib, known as the right second intercostal space, just next to the upper border of the sternum, you'll hear the aortic valve closing.

如果你将听诊器置于第二肋及第三肋之间，被称为右第二肋间隙；紧靠胸骨上缘，你将听到主动脉瓣关闭的声音。