In the design illustrated, the core pin is anchored by a local core-retaining plate.
图示的设计中，型芯杆是用一个局部的型芯挡板固定的。
It is important for the beginner to note that the core pin extend completely through the sleeve, and is attached to the back plate.
对于初学者来说重要的是注意型芯延伸完全穿过顶管，并且安装在底板上。
It is important for the beginner to note that the core pin extend completely through the sleeve, and is attached to the back plate.
对于初学者来说重要的是注意型芯延伸完全穿过顶管，并且安装在底板上。
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