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。

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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。

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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。

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The 20-something athlete hurt his knee running track five years ago so he switched to disc golf, a lower impact game.

VOA: standard.2010.08.03

That impact releases hot gas from the disc which comes out from both sides.

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