Hand wheel,lever and spanner driving and safety valve,pressure reducing valve,traps overleap this symbol.

1、手轮、手柄和扳手及安全阀、减压阀、疏水阀省略本代号。

The sea obediently respects its boundary, and though it be but a belt of sand, it does not overleap the limit.

是约伯问题得到一个令人十分羞案。人不是大海。

Ambition often overleaps itself.

野心往往自招失败。