Plastic injection mould, coolant passages, eject pin and electrical heating holes.
塑胶射出模具–却水孔、梢孔及电热孔.
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
A hole or pipe in a wall to allow water to run off.
墙上排水孔，墙上排水管
(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）。
A porous soil
多孔(透水)的土壤
Research on the experiment of liquid leaking back and forth through a small hole
糖水-水小孔泄漏振荡周期与小孔孔径的关系
Research on Fluid Dynamical Characteristics of Multi-hole Orifice Plate in Hydraulic Cavitation
水力空化多孔孔板流体力学特性研究
a new breather in the diver's equipment
潜水装备的新式呼吸孔
hydraulic gun release sub
射孔器水力丢手接头
rotary wash-boring equipment
旋转式水冲钻孔设备
sound-absorbing perforated asbestos cement panel
吸声带孔石棉水泥板
root porosity of rice varieties
水稻品种根的孔隙性
perforated pipe sprinkler
多孔管喷水灭火装置
The water drained out of the hole in the pail.
水从桶的孔里流出来。
variable hole fruit grader
可变孔径的水果分级机
horizontal borehole pressure recorder
水平钻孔压力记录器
Specification for measurement of pore-water pressure
孔隙水压力测试规程
soil lines of equal pore pressure
土内孔隙水压等同线