Usually the compressive force is in the form of hammer blows using a power hammer or a press, as shown in Fig. 4.1.

通常压力都是以由如图4.1所示的动力锤或压力机提供的锤击形式出现。

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Our country makes the first ten thousand ton hydraulic press is the hammer forging hydraulic press.

我国制造的第一台万吨水压机就是自由锻造水压机。

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The upsetting test of metal powder sintered preform by blow speed of the hydraulic press, crank press, pneumatic hammer and high energy rate forging hammer was reported.

研究了用液压机、曲柄压力机、空气锤及高速锤的打击速度对粉末冶金烧结体进行的镦粗试验。

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"Mr Sullivan should have a bit more composure when he talks to the press to hammer the players, it's not helping anyone, " said Boa Morte, who scored on his return for the Hammers in Sunday's 1-1 draw with Manchester City.

BBC: Gianfranco Zola to discuss West Ham future with owners