There are many ways to measure base - level pitch diameter of cone - shaped thread.

检测圆锥管螺纹基面中径的方法有很多,但测量过程复杂.

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Measure the middle diameter of inner screw.

用于外螺纹中径测量前的校准.

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The confusion is solved in conception and manufacture of single and actual pitch diameter.

解决了当前普通螺纹加工、检验中,单一中径与实际中径概念上的混乱和生产中的矛盾.

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The most significant variable related to third molar impaction is inadequate space for tooth eruption.

:大多数阻生的下颌第三磨牙磨牙后间隙牙冠近远中径比值小于1.

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