他用踌躇的肯定词“是的”限制了他的强调语气.He moderates his assent with the halting affirmative.于是取什么舍什么便成了让我们很费踌躇的事.Take what to abandoned to be become then let us very expend hesitant thing....
The structure and machining process of plane diffluent compound die are introduced.介绍了平面分流组合模的结构和加工工艺.The formation of grain boundary step when machining poly - crystal is also examined.还探讨了加工多晶材料时晶界台阶的形成.Abstract: The s...