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。
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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