entrance hole中文什么意思
进线孔
- entrance: vt. 使出神,使神魂颠倒,使发迷; ...
- hole: n. 1.洞,穴,孔;(衣服等上的) ...
- at the entrance: 在进口处; 在入口处
例句与用法
- 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。