叙述了液态模锻的工艺实质 、 应用范围及工艺参数.The paper has described technological essence, application range and technological parameters.阐述了用粉末锻造工艺代替普通模锻的优点.It has elaborated the advantages of the powder forging technology.分析了汽车驱动齿轮的冷模锻工艺...
Whenever recession strikes, a chain reaction is set into motion.只要经济不景气，连锁反应就开始了。America has enough firepower in the area to mount sustained air strikes.美国在该地区拥有足够的火力发动持续的空中打击。Many strikes over the last few years have no...