plug hole meaning in English

出料孔
船底放水孔
带塞的孔
孔塞
全塞孔
栓塞孔

The socket is type a , which has two flat plug holes
使用海外电器时，请注意变压器和变换插孔。
Oil filler plug : it is necessary to fill no . 30 machine oil or no . 20 gear oil before using aerator , until oil reaches oil plug hole on the side and overflows
注油油塞：增氧机使用前，必须先注入30号机械油或20号齿轮油，注油量达到侧面油塞孔有油流出为止。
Backers argue that the measure would allow the health and human serices department to negotiate lower prices on a number of popular drugs , allowing the saings to be used to plug holes in coerage for many seniors
支持者认为，这项措施可以让美国健康和人类服务部就降低许多常规用药的价格进行谈判，从而使救助款可以覆盖到更多的老年人。