论述了井下矿山矿井计量漏斗的结构、工作原理和设计方法等。
This paper describes and discusses the configuration, coorking principle and design methods, etc, of measuring hoper used in underground mine.
矿坑涌水直接危及地下矿山矿井安全，保障矿山安全渡汛是地下矿山的重大课题。
The gush-out water in the mineral pit endangers the underground mine safety directly.
分析了非铀矿山矿井氡析出的规律，介绍了降低井下氡及其氡子体浓度的方式方法和有效措施。
The law of slightly uranium mine giving off radon was analysed, and the methods and effective measures of reducing underground mine radon density were introduced.
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