引擎盖下：NASA一个焊接技术人员在拧上“猎户号”的螺帽。

Under the bonnet: a Nasa weld technician works on Orion.

youdao

油箱里溢出来一点汽油，托马斯把加油管挂好，拧上油箱盖子，擦掉溅在后挡泥板上的汽油。

The tank overflowed a little and Thomas hung up the hose and put on the cap and wiped away the splash of gasoline on the rear fender.

youdao

油箱里溢出来一点汽油，托马斯把加油管挂好，拧上油箱盖子，擦掉溅在后挡泥板上的汽油。

The tank overflowed a little and Thomas hung up the hose and put on the cap and wiped away the splash of gasoline on the rear fender.

youdao