ZHANG Tie. Structure and Principle of Hydraulic Excavator and Its Application [m]. Qingdao: Petroleum University Press, 2002.
[3]张铁。液压挖掘机结构原理及使用[M]。青岛：石油大学出版社，2002。
Zhang Fei said: "You don't need to go. I'll tie him up and force him to come and see you instead."
张飞则说：你们别去了，我用绳子捆来。
Zhang Fei said: "You don't need to go. I'll tie him up and force him to come and see you instead."
张飞则说：你们别去了，我用绳子捆来。
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