entrance hole meaning in English
进线孔
Examples
- Ideally , the site will be a cavity in a tree , well off the ground , with a small entrance hole facing south , and lots of room inside for brood and honey
从理想的角度讲，新家的地点将在一棵树的内部，离地面要有一定的距离，蜂巢座北朝南，蜂巢里也要有大量可以生育并储存蜂蜜的空间。 - It provides performance advantages over the conventional perforator with the same diameter and similar charges , its penetration depth is increased by 7 % and entrance hole volume by 10 %
由于采用了复式射孔枪和复式射孔弹结构，使射孔弹和火药能量得到充分利用，与一般的枪径及弹型的射孔器比较，其穿孔深度提高7 %以上，孔容提高10 %以上。