她凝视着飞机，直到飞机消失在视线外为止。

She watched the plane till it disappeared from sight.

youdao

灯丝隐藏在下面，在坩埚的视线外这样可以预防离子腐蚀，最大程度的保护其不受游离的碎料和冷凝物的侵袭。

The filament is hidden below and out of the line-of-sight of the crucible. This prevents ion erosion and provides maximum protection from shorting caused by stray particles or condensate.

youdao

灯丝隐藏在下面，在坩埚的视线外这样可以预防离子腐蚀，最大程度的保护其不受游离的碎料和冷凝物的侵袭。

The filament is hidden below and out of the line-of-sight of the crucible. This prevents ion erosion and provides maximum protection from shorting caused by stray particles or condensate.

youdao