导向架和箍圈、扭转铜套，以上各点每班注油一次。
Guide frame, tension sleeve and twisting copper sheathing are lubricated once per shift.
本文提出了混凝土梁斜筋和箍筋应力脉的计算公式。
In this paper, the formula for calculating stress spectra of hoping and diagonal bar is presented.
提出了有斜裂缝梁内的混凝土承受的剪力和箍筋应力的计算方法。
The method for calculating the shear carried by the concrete and the stirrup stress in beams with inclined cracks are suggested in the paper.
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