As I have been writing and talking about space flight for the best part of 20 years, a sudden switch of interest to the depth of the sea doer seem peculiar.

在20年的绝大部分时间里，我一直在撰写和谈论太空飞行，突然对深海探险者的兴趣发生了转变，这似乎有些奇怪。

Start the mains switch of control panel.

打开控制面板电源开关。

Itis the control switch of all of our being.

是我们整个生命的控制开关。

The hydraulic switch of skylight found leaking.

天窗的液压开关发现漏油。

Operate through the control switch of the control board.

通过操纵台上的控制开关进行操作。