超强寿命发光二极管工程塑料壳体。
概述了题示塑料壳体的开发研究工作。
The development and research on the citation plastic shell was reviewed in this paper.
介绍了柱塞式液压泵塑料壳体注塑成型模具的结构设计和工作原理，该模具具有简单合理、动作可靠等特点。
Structural design and operational principle of molds for plastics piston pump housings are presented. The mold presents itself as a simple and rational piece of design work.
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