Material nonlinear and contact problem in connecting threads are considered in formulation.
计算中考虑了材料的非线性问题和螺纹间的接触问题.
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Rectangle-shape side gate and the gear-rack taking off thread mechanism were used.
采用矩形侧浇口、齿轮齿条脱螺纹机构.
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Apply pipe dope sparingly on pipe threads, never on valve threads.
在管道螺纹上涂敷螺纹油, 但是不要在阀门螺纹上涂螺纹油.
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Study on the Cross-sectional View of MJ Internal Threads and the Centering Method
MJ内螺纹横截面形状及定中心方法的研究
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螺纹的基本知识、规定画法 、 标注和查表.
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