A double-strike direct electric drive screw press is a new machine used in particle and dispersed material forming.
双击式直接电动螺旋压力机是用于颗粒材料及离散材料成形的新型机器。
By taking 135 three-screw pump as an example, the geometric parameter design, the forming of spiral surface and the characteristic of screw gearing are investigated.
以135型三螺杆泵为例，对螺杆几何参数设计、螺旋型面的形成、螺杆啮合特性进行了探讨。
In the construction process of the shear wall formwork supporting, construction on the screw pull is a very important aspect, and also a great influence on the quality of concrete forming wall.
在剪力墙木模板支撑施工过程中，对拉螺杆的施工是非常重要的一个环节，也对剪力墙混凝土成型质量影响很大。
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