飞行员确实以错误的高度下降，并以为他们遵循了空中管制员的指示。

The pilots did descend to the wrong altitude then, thinking they were following the air controllers' instructions.

youdao

当时国际空间站位于南印度洋上空350公里(220英里)高度，宇航观察员极有可能正对着南极洲(不可见)和南极方向。

The ISS was located over the Southern Indian Ocean at an altitude of 350 kilometers (220 miles), with the astronaut observer most likely looking towards Antarctica (not visible) and the South Pole.

youdao

但是，直升机线路员从事的却是真正的工作，他们被认为是路线工作的一个高度专业化领域，很少接线员受过特殊训练来进行此项工作。

But linemen who work from helicopters are for real and they are considered a highly specialized area of line work; few linemen have the special training to perform it.

youdao