介绍了美式八角锤锤体精锻成形新工艺及其预锻模结构设计要点.Title : New Process and Design of Pre - forming Die for Precision Forging U.S.锻造过程实现净形和近净形制造关键是优化预锻模的设计.The key step in flashless forging is to optimize th ed design of preform die shape....
婴儿早产3个月，体重只有3磅5盎司。The baby was born three months early weighing only 3 lb 5oz.早产婴儿必须靠静脉输入喂养。Premature babies have to be fed intravenously.那个早产的婴儿很健康.The premature baby is doing well....
新的发现物加深了我们对巨猿的认识.The new finds have deepened our knowledge of giant ape.然而, 这些发现物只是颌骨的部位和一些零散的牙齿.However, those finds were limited to jaw parts and loose teeth.珍藏物,(贵重的)发现物被发现或找到的一批有价值的东西; 地财.A collection of valuable ite...