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单词
roof support mine roof support for longwall advancing
释义
roof support mine roof support for longwall advancing
[固定建筑物] 屋顶支撑，采取长壁开采法的矿井顶部支撑
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back rind
backrinding
back rinding
back ring
back-rippings
back ripple current
back rise
back-river
back river
back road
back-road
backroad
back roads
back-roads
backroads
backroads.com
back rod
backroll
back roll
back-roll
back roll banding
backrolled
back roller
back roller line
backrolling
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更新时间：2026/10/4 7:10:05