The forging pump press divides into the drop forging hydraulic press and the free forging hydraulic press two kinds.

锻造水压机又分为模锻水压机和自由锻水压机两种。

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The drop forging hydraulic pressure confidential USES the mold, but the free forging hydraulic press does not use the mold.

模锻水压机要用模具，而自由锻水压机不用模具。

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The feature, structure and function of a automatic design system ZZDGS for free forging technique are introduced and treatment of some key problems in systematic development is demonstrated.

介绍了锤上自由锻工艺自动设计系统ZZ DGS的特点、结构及功能，并重点说明了系统开发中几个关键问题的处理方法。

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At previous summits, the United States set forth an ambitious and still unattained goal: forging a vast, hemisphere-wide free-trade zone.

VOA: standard.2009.04.15