连杆螺钉在加工完成后成品交验前，要求进行预拉伸试验。
Before completing linkage screw in the machining, finished products are needed to do the pre-tensile test.
作者把掩护梁和前、后连杆一起考虑，引出掩护梁和前、后连杆组成的虚拟系统。
The author derives a virtual system of debris shield and the front and rear linkage.
不同表面质量的连杆盐雾试验对比表明：镀前对汽车减振器连杆进行表面超精加工可显著提高连杆的耐蚀性。
The salt spray test results of piston rods with different surface qualities showed that superfinish process of piston rods before plating can improve corrosion-resistance of piston rods significantly.
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