cross-measure drift [矿业] 穿层石门
A simple, feasible and economic way is introduced to construct the inclined shaft cross drift sand.
介绍一种简便、易行、经济、实用的斜井施工通过流砂层的方法。
Cross country road covered with grass, stepped on the wind drift of the mottled shadows, watching as the broad general field of milk washed, I excitedly ran towards the ground.
穿越长满小草的乡间小路,踩过随风飘移的斑驳树影,望着如牛乳洗过一般的广阔田野,我兴冲冲地朝着地里奔去。
The drift ratio of RC beams at yielding is related to the yielding strength of longitudinal bars and depth of beam cross section.
RC梁的屈服位移角与受拉钢筋屈服强度、截面高度有关;
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