英语词汇primary mining怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

网络释义

1
?采区准备
欢城煤矿0.9 Mt/a新井设计_论文关键词：立井开拓； 采区准备；单一开采 [gap=1898]Keywords：Actually develop ; primary mining; Single mining

双语例句

1
Introduces the roadway gas drained technology for high gas mining face, it has resolved the gas control problems during primary mining face.
介绍了高瓦斯采煤工作面采用高抽巷抽放、尾抽巷抽放等专用巷道瓦斯抽放技术，解决了工作面初采期间的瓦斯问题。
2
Along with mining depth becoming deep and coal output increasing, the gas discharge increased, and gas problem of primary mining in coal face becomes important.
随着采煤深度的下延和产量的加大，瓦斯涌出量逐步增加，采煤工作面初采期间的瓦斯问题越来越引起重视。
3
Parallel rails had long been used in mining operations to move bigger loads, but horses were still the primary source of power.
在采矿作业中，平行铁轨早已被用来运送大件的货物，但马匹仍然是主要的运输工具。

单词	primary mining
释义	primary mining 简明释义采区准备：指在采矿活动开始之前进行的准备工作，包括确定采矿区域、布置设备和制定采矿计划。网络释义 1 ?采区准备欢城煤矿0.9 Mt/a新井设计_论文关键词：立井开拓；采区准备；单一开采 [gap=1898]Keywords：Actually develop ; primary mining; Single mining 双语例句 1 Introduces the roadway gas drained technology for high gas mining face, it has resolved the gas control problems during primary mining face. 介绍了高瓦斯采煤工作面采用高抽巷抽放、尾抽巷抽放等专用巷道瓦斯抽放技术，解决了工作面初采期间的瓦斯问题。 2 Along with mining depth becoming deep and coal output increasing, the gas discharge increased, and gas problem of primary mining in coal face becomes important. 随着采煤深度的下延和产量的加大，瓦斯涌出量逐步增加，采煤工作面初采期间的瓦斯问题越来越引起重视。 3 Parallel rails had long been used in mining operations to move bigger loads, but horses were still the primary source of power. 在采矿作业中，平行铁轨早已被用来运送大件的货物，但马匹仍然是主要的运输工具。
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