full mechanized coal mining face
full mechanized coal mining face
综采工作面
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Nitrogen injection to the gob with buried pipes is used in 7235 full-mechanized caving mining face in Xuzhuang Colliery to prevent the left coal oxidizing and self-igniting.
介绍了徐庄煤矿7235综放面开采中，采用埋管注氮方式向采空区注氮，防止采空区遗煤氧化自燃。
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