双层钮筒 HIDDEN PLACKET ; hidden n placket
原身双层钮筒 FOLD BACK HIDDEN PLACKET ; FOLD BBDK HIDDEN PLBDKET
双层顶出套筒 DOUBLE SLEEVE
双层取心筒 double core barrel ; core barrel of double tubeswivel type
双层石墨套筒 double graphite sleeve
双层护筒 double steel cylinders
双层滚筒 Double layer Hydro-inflatable
双层圆筒式线圈 Double layer cylindrical winding
双层圆筒式线圈-- Double layer cylindrical winding
首先推导了双层筒体基于最佳化设计原则的缩套界面压力的计算公式及径比条件。
First of all, the equation of shrunk interface pressure and the condition of diametrical ratio are deduced under the optimal design principle of shrunk double-layers cylinder.
本论文以双层加筋筒形结构为主要研究模型,探讨了水下爆炸作用下潜艇结构冲击环境研究的如下几方面的问题。
In this paper, double cylinder shell structure with stiffening ribs is used to solve some problems about the impulsive environment of underwater explosion for submarine structure.
它采用四极枪结构,两个栅极,第一栅极采用双层同心球面网,第二栅极外还添加了屏蔽筒。
The first grate has double spherical nets with the same center and outside the second one there is a shield cylinder to make electron congregate.
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