1) block drain plug
缸体排放螺塞
2) cylinder head drain plug
缸盖排放螺塞
3) drain plug hole
排放螺塞孔
4) power cylinder drain plug
动力缸排放塞
5) housing drain plug
壳体排放塞
6) engine drain plug
发动机排放螺塞
参考词条