从理论和工艺上分析滚筒齿座开焊的原因、气孔的产生和怎样减少气孔生成、冷裂现象生成及其予防。
This paper analyses theoretically and technologically, the reason of barrel tooth holders sealing off , of produced gas hole and cold crack.
对普遍的信仰的相反，小企业可能通过采取一些予防步骤生存疯狂的经济。
Contrary to popular belief, small businesses can survive a crazy economy by taking some proactive steps.
从理论和工艺上分析滚筒齿座开焊的原因、气孔的产生和怎样减少气孔生成、冷裂现象生成及其予防。
This paper analyses theoretically and technologically, the reason of barrel tooth holders sealing off, of produced gas hole and cold crack. Especially, the writer has fourd the way to avoid them.
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