溜井 meaning in English

chute raise
drop shaft
gravity shaft
jack shaft
tamei
winze

Technical renovation of high raise in yongshaba mine
用沙坝矿高溜井的技术改造
Pass faults in open - pit mine and their prevention and control
露天矿溜井故障及其防治
Compound reinforcement technology for main ore - pass and ore bins
主溜井及矿仓的复合加固工艺
Effect of the recirculation system of ore - pass raise at grasberg mine
矿的放矿溜井再循环系统的效果
The impact air flow in ore pass
溜井的冲击气流

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