The feature common to all of them is that, like the hand forging hammer, they utilize the energy of a falling weight to develop the pressure needed for shaping the metal.
就其一般特性而言,都象手工锻锤一样,它们均利用落重能量来产生金属成型所需的压力。
3
Why should other countries abide by rules they had no hand in shaping, which were made in the interests of a few Western powers?