spherical hole

• 圆孔

spherical hole的用法和样例：

例句

1. The stress concentration near hole is investigated in detail by submodel technique.
   获得了圆孔不同分布状态下的应力分布规律和变形状况。
2. European peasants would insert a wooden drill in a round hole and rotate it briskly between their palms.
   欧洲的农夫将一个木钻子放入一个圆孔并用手掌不停旋转它。