We take one typical example, introduce hydraulicdrawing, give more details of phenomena, analyze it and solve the problem at the end.
本文选取其中较典型的一例，通过对液压原理图的解读，进行故障现象的描述和分析，最后彻底解决了问题。
2
This paper mainly introduces the applications of several new techniques of inner high pressure forming, hydraulicdrawing and hot forming in automotive stamping parts forming operations.
介绍了液力拉深、内高压成形和热成形等几种新工艺在汽车冲压件成形中的应用。
3
Hydraulicdrawing-core mechanism was adopted for two-side of inner-sinking in the die casting die, and pre-resetting mechanism was set to avoid the interference of core slide with ejector pin.