... 机械阈 mechanical threshold 机械性中毒 mechanical toxicity 机械性创伤 mechanical trauma ...
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The flame retarded PP containing this composite flame retardant has low smoke, low toxicity, low density, low cost and good mechanical properties.
用此复合阻燃剂的阻燃PP，具有低卤低烟低毒、低密度、低成本，力学性能较佳的优点。
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