Through the study of the injection mould for the plastic conduit, the problems on design of multi_cavity injection moulds for deep_cavity plastic parts were solved.

对中性笔笔帽塑件进行了分析，确定了模具结构，阐述了深腔强脱塑件模具的设计注意要点，对同类注射模具有较好的参考价值。

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Based on the theory of elastic-plastic deformation, according to the finite element method, this paper presents a nonlinear analysis of the distribution of the soil pressure of the ditch conduit.

表明对大型沟埋式管道的上压力，采用弹塑性理论的非线性分析是比较符合实际的，其结果可供设计参考。

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Indian Head, however, finding that the manufacturer of metal electrical conduit may have violated antitrust laws by recruiting hundreds of allies to pack a standard-setting body that banned plastic conduit from fire codes.

FORBES: Liberty Media Unit Says Standards Manipulated By Competitors