ventilating shaft

美 [ˈventɪleɪtɪŋ ʃæft]英 [ˈventɪleɪtɪŋ ʃɑːft]

ventilating shaft

1

Study on tech. of ventilating shaft protection pillar mining under complicated condition at Lincheng Coal Mine

临城矿复杂条件下开采风井保护煤柱技术研究
2

Technological Transformation of the Ventilating Shaft of the Colliery to Promote Systematic

兴无煤矿风井提升系统的技术改造
3

Design on the structure of wall of well of the ventilating shaft in the goaf and subsidence area

采空塌陷区风井井壁结构设计
4

It is indicated that the suction of air from the emergency ventilating shaft is the reason to cause the harmful hydraulic vibration .

研究表明，事故门井卷吸空气，形成明满交替流是造成一系列不良水力现象的前提。
5

The design principle and method of ventilating entry and shaft used specially in mine

矿山专用通风井巷的设计原理与方法