pretensioned pipe的例句大全

The Stress and Displacement of the Dangerous Field on the the Tube-plate and the Edge of Man-hole and the Tube-plate Are Affected by the Supporting Bar Production and Application of Pretensioned Concrete Wall Pipe Piling Sheet

管板上危险处及人孔与管板周边应力、位移受拉撑杆件的影响先张法预应力混凝土管桩端板生产及应用

And on the other hand, drill pipes with low strength and optimum pretensioned torque and proper bending strength ratio should be selected, upset drill pipe should be used between drill collar and drill stem, and corrosion control and drill tools detection should be strengthened.

另一方面在保证提升能力前提下优先选用低强度钻杆，使用最佳预紧扭矩，选择合适的弯曲强度比，在钻艇和钻杆之间使用加重钻杆，控制腐蚀以及加强钻具的探伤与检验。

production and application of pretensioned concrete wall pipe piling sheet

先张法预应力混凝土管桩端板生产及应用