注射系统的组成：注射系统由塑化装置和动力传递装置组成。
Composition of injection system: the injection system is composed of plasticizing device and power transmission device.
螺杆式注塑机塑化装置主要由加料装

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置、料筒、螺杆、过胶组件、射嘴部分组成。动力传递装置包括注射油缸、注射座移动油缸以及螺杆驱动装置（熔胶马达）。
The plasticizing device of screw injection molding machine is mainly composed of feeding device, barrel, screw, glue passing component and nozzle. The power transmission device includes injection cylinder, injection seat moving cylinder and screw driving device (melt glue motor).