On abroad, impact valves incorporated in air impact molding machine are mainly disc valve and grid valve. Each of these has its own characteristic.
国外的空气冲击造型机所使用的冲击阀，主要有圆盘阀及栅格阀两种，其各有特点。
Objective To evaluate the impact of intensive rehabilitation on postoperative result of lumbar disc herniation(LDH).
目的：评价强化康复治疗对腰椎间盘突出症术后早期效果的影响。
In addition to standard equipment such as an impact-tested safety cab with three-point seat belts and a driver's airbag, these include electronically operated disc brakes.
概念卡车装备有经过碰撞试验的安全驾驶室、三点式座位安全带、驾驶员气囊等标准设置，除此之外还包括电子操作盘式制动器。
It has proved that impact between the shoulders is the main reason of causing the braking crudeness, These studies may render a way to improve the performance of disc brake.
研究表明，制动时凸台间的碰撞是导致制动粗暴的主要原因，从而为改善盘式制动器的性能提供了途径。
Effect of impact on wear resistance of high chromium cast iron and austenitic stainless steel has been studied by ball-on-ball impact and pin-on-disc abrasion test.
通过落球冲击和滑动磨损试验探讨了冲击对高铬铸铁和奥氏体不锈钢耐磨性的影响。
Effect of impact on wear resistance of high chromium cast iron and austenitic stainless steel has been studied by ball-on-ball impact and pin-on-disc abrasion test.
通过落球冲击和滑动磨损试验探讨了冲击对高铬铸铁和奥氏体不锈钢耐磨性的影响。
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