His machine cut a natural gas pipeline in wyoming on saturday 周六他的机器切断了怀俄明的一处天然气管道。
His machine cut a natural gas pipeline in wyoming on saturday 星期六,在怀俄明州他的推土机将一天然气管道切断。
His machine cut a natural gas pipeline in wyoming on saturday 周六其推土机切断了地处怀俄明州的一条天然气输送管道。
Abstract : through analyzing the cutting line spacing of heading machine cutting head , a new method of determing cutting line spacing is put forward 文摘:通过对掘进机截割头截线间距的分析,提出一种确定截线间距的新方法。
In this paper , the machine cutting theory and design algorithm of klingelnberg cycloid bevel gear were studied . the formula of the geometry design were deduced and given 本文通过分析克林贝格摆线锥齿轮铣齿原理和几何设计及制造的基本理论,推导验证了其几何设计算法及冠轮齿面方程。