打开相位计，并碰触插座的每个插孔；

Turn on the phase meter and touch each plug of the socket;

youdao

一种可旋转的二极扁插头，适用于交流电源两、三眼扁插孔插座。

The utility model relates to a rotary two-pole flat plug, suitable for a two-hole and three-hole flat jack socket using an AC power supply.

youdao

当插座处于插孔向上的插 放成组钻削工具的位置时，锁杆的松开部与成组钻削工具柄部的锁紧槽 相对应；

When the socket is at the position of inserting the collective drilling tool with jack upward, the locked loosing part is corresponding with the locking groove of the shank of the drilling tool.

youdao