Improved techniques on impact hammer configuration and continuation of dynamic operation are suggested according to engineering specifications and penetration characteristics.

根据贯入特性、工程规范和施工特点，提出了有关桩锤配置与动力连续作业等技术的改进措施。

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The European debt crisis continues to hammer global stocks as fears grow that Europe's problems could have a wider impact.

VOA: standard.2010.05.21

The steel tubes, along with steel sheets, are being driven into the seabed using a large impact hammer.

BBC: Weymouth harbour wall: Warning over repair noise

We probably would've destroyed the phone with a hammer or a direct impact with a wall by now, so our respect goes out to those of you who are still waiting and haven't destroyed anything of value.

ENGADGET: Apple iPhone 3G S trouble roundup Mobile

Shoemaker was studying asteroid impact craters in Australia and once said he would like to take a geologist's hammer to Eros.

BBC: At a glance: Asteroid touchdown