1.
To pierce or stamp with rows of holes, as those between postage stamps, to allow easy separation.
打或印一排孔，如在邮票上打孔使之易被撕开
2.
Probe into Large Diameter Direct Drainage Borehole Construction Technology in North China Type Coalmines
华北型煤矿施工大孔径直排孔的工艺探讨
3.
A hole or pipe in a wall to allow water to run off.
墙上排水孔，墙上排水管
4.
Having a hole or holes, especially a row of small holes.
有孔的或多孔的，尤指有一排小孔的
5.
bar actuated pressure vent
杆式驱动液压排出孔
6.
(British) a hole into which a plug fits (especially a hole where water drains away).
（英国）用来安装插头的孔（尤指排水孔）。
7.
Gaseous excretion takes place by diffusion through the stomata and lenticels.
气体通过气孔或皮孔释放的方式排出。
8.
Construction Technique for Large Diameter Discharging Tunnel in the Luoxidu Hydropower Plant
溪洛渡水电站大孔径排水孔施工技术
9.
Discussion on the opening porosity of porous ceramic materials by drainage method
排液法测定多孔陶瓷材料开孔率的探讨
10.
INFLUENCE OF TURBULENCE INTENSITY ON COOLING EFFECTIVENESS IN BACK-DIFFUSED HOLE
湍流度对单排圆孔及后扩孔气膜冷却的影响
11.
The large holes on the left and right represent the inlet and exhausting valve ports respectively.
左右两侧的两个大孔，分别表示进气阀孔和排气阀孔。
12.
Some Solutions for the Problems of BTA
单管内排屑深孔钻排屑问题若干解决方法
13.
line with beams or planks, as of construction holes.
在建筑物的孔里用梁条或支架排列。
14.
To excrete perspiration through the pores of the skin.
出汗，流汗通过皮肤上的毛孔排泄汗液
15.
Little holes were punched out along the edge of the paper.
沿着纸边打上了一排小孔。
16.
The drain is clogged with hair. The water won't drain.
排水孔塞满了头发。水放不出去。
17.
breathing pad roller
微孔弹性辊（又称排吸水轧辊）
18.
a vent (as in a roof) for smoke to escape.
一个用来排烟的孔（比如屋顶上的烟囱）。