The impact force is applied by a falling steel ball instead of the spring hammer (USA).

用一个跌落的钢球而不是用弹簧冲击器来施加冲击力(美国)。

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The design method of damping spring in vibration hammer is developed in this paper. Espacially a selecting range is introduced for calculating damping parameter, which is useful in design.

介绍了振动锤隔振弹簧设计方法给出了隔振参数计算必要的取值范围，可供实际设计参考。

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The ALC? is an in-line, spring assisted, single guided "wafer" check valve designed to prevent "water hammer" and "reverse" flow.

同轴、管内螺纹弹簧单导对夹式止回阀，专门用于防止水击作用和倒流现象。

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Dr. Hammer and his team spring into action, pulling the shark on board with a traffic-cone orange gurney.

FORBES: Summit Series: Catching Sharks With Celebrities And A Billionaire (video)

The other factors boosting the sale price are that banks are more willing to lend to purchase a team than they were a year ago and it is likely owners and players will be able to hammer out a new collective bargaining agreement without a work stoppage next spring.

FORBES: Bankers Say Bidders Willing To Pay $1 Billion For The Los Angeles Dodgers