core and cavity of a mould

• 型芯和型腔

core and cavity of a mould的用法和样例：

例句

1. Components installed on the tight hole and cavity with the patience and skills required to determine whether the parts are straight, have it feel normal resistance.
   把部件安装到紧配合的孔和型腔时需要耐心和技巧来判断部件是否是直的，还有阻力是否感觉正常。