A. N. s. I. standard b2.4-this standard controls NIBCO hose coupling screw threads.

标准B2.4 -这个标准控制美国尼必可软管连接螺丝螺纹。

In the second chapter, the interaction among a screw dislocation, circular interfacial crack and inclusion is solved based on the electromechanical coupling relation of piezoelectric material.

第二章基于压电材料的机电耦合关系求解螺型位错、圆形界面裂纹与夹杂之间相互作用的问题。

New technology and new construction, such as hydraulic coupling, dismountable scraper chain, pneumatic discharge gate valve and screw tensioning device with multi-spring buffer are used.

它采用液力偶合器、可拆式刮板链条、气动卸料闸门以及多弹簧缓冲的螺旋张紧装置等新技术、新结构。

Simulated the spot welding structure by monolayer board, the screw joint structure by node coupling.

以精度较高的单层板结构来模拟点焊结构，以节点耦合来模拟螺栓联接结构。

This paper presents a high efficient process method of a steep lead tread of coupling screw and studies the profile accuracy by using electronic computer and arrives at the profile error curve.

介绍了一种大导程波形联结螺纹的高效加工方法，借助计算机进行了螺纹牙形的精度分析，得出了齿形误差曲线。