天井 meaning in English
1.(院落) small yard; courtyard
2.(天窗) skylight
3.[采矿工程] raiserockhole 短语和例子
Examples
- A raise catwalk is made up along the side of the "chest" .
沿着“箱”一侧设一道不宽的天井升降梯道。 - They came to the little court, which was shut in by old red walls .
他们来到小天井，这里四周由古老的红墙环抱。 - The alimak lift runs on guides which are bolted to the wall of the raise .
阿立马克提升机沿着罐道移动，罐道则用螺栓固定在天井壁上。 - Since the crater-hole breakage is of great importance, it can be advisable to use a larger drill hole than the others in the raise .
由于漏斗炮眼的爆破效果非常重要，故天井爆破宜采用较大的炮眼直径。 - Open raise implies that building work is limited to the raise catwalk and the basis of a simple platform on which drilling personnel stand .
开放式天井，是指那些开挖过程中只需设置天井升降梯道及供钻工站立的简单基础平台的天井。