1.
The plastic hose should have the correct external diameter in relation to the drill hole.
塑料软管的外径应该与炮眼直径相适应。
2.
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。
3.
Selection on Depth and Diameter of Blasting Borehole for Rapid Heading of Mine Rock Roadway in Deep Level of Mine
煤矿深部岩巷快速掘进炮眼深度和直径选择
4.
The diameter of a large projectile, such as an artillery shell, measured in millimeters or in inches.
弹径大炮弹的直径，如炮弹壳，以毫米或英寸计
5.
Levelling is usually carried out with vertical drill holes.
整平爆破通常用垂直炮眼进行。
6.
Our men waited until the gunners lit their matches in the cannon-ports.
我们的人一直等到炮手在炮眼点燃了火柴才行动。
7.
The explosive from the lorry is delivered to the shothole by means of a compressed air.
从卡车上直接用压缩空气将炸药装入炮眼。
8.
The centre of this wooden disc was hollowed out to a diameter equal to the exterior diameter of the Columbiad.
这木盘中间留着一个直径相当于哥伦比亚炮外径的圆洞。
9.
The human eye has a pupil diameter which, of course, varies.
人眼瞳孔直径当然是可变的。
10.
The eye is very nearly spherical in shape, and about an inch in diameter.
眼的形状非常接近球形，直径约一英吋。
11.
The measurement of scotopic pupil diameter with noncontact tonometer
非接触眼压计测量暗适应下瞳孔直径
12.
So small is the diameter of the tube that it is hard to see it with the naked eye.
这根管子的直径太小了，用肉眼简直看不出来
13.
Blasthole logging and supervision of blasthole sampling.
记录炮眼数据，并监督炮眼采样工作。
14.
Blasthole deflection is an severe adverse factor when mining is carried out using large diameter long hole blasting .
在大直径深孔采矿中 ,炮孔偏斜是非常不利的因素。
15.
Celia looked down directly at the two executive rows.
西莉亚双眼径直望着坐在前两排的显要人物。
16.
If the diameter of the pupil is 6 mm the eye is able to separate 120 seconds of arc.
如果瞳孔直径为6毫米，人眼可分辨120弧秒。
17.
Prediction of Anterior Chamber Diameter Based on Artificial Neural Networks;
基于人工神经网络的人眼前房直径预测
18.
The plate has holes of approximately 2 in. in diameter on 7-to 8-in. centers in staggered rows.
板上有直径近2英寸的孔眼，交错横排，孔眼中心距为7-8英寸。