back bolting是什么意思,back bolting的中文翻译,back bolting的用法例句-行业英语-优校网

网络释义

1)back bolting,顶板锚杆支护2)roof bolting,顶板锚杆支护3)roof,顶板4)abacus,顶板5)bottom rider,顶板6)crown plate,顶板7)crown sheet,顶板8)head plate,顶板9)rider,顶板10)roof sheet,顶板

用法例句

Evolvement rules of the roof control and crack field in working face;

顶板防治与回采工作面裂隙场演化规律

Stability Analysis on the Roofs of Mined-out Area with Different Spans in Jiagou Mine;

夹沟矿不同跨度采空区顶板的稳定性分析研究

Analysis on Critical Roof Thickness of Mined-out Area in Jiaguo Mine;

夹沟矿采空区顶板的临界安全厚度分析

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back bolting是什么意思

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