Three-layer Composite Honeycomb woofer 三层复合蜂窝低音单元
Composite-to-Layer 复合到层
composite layer 复合层
two-layer composite 双层复合
dual-layer composite 双层复合
multi-layer composite 多层复合板
three-layer composite 三层复合材料
three layer composite 三层复合材料
By the use of the variational principle of complementary energy, the closed form of the stresses of double-layer composite bar is obtained.
运用最小余能原理，求得了双层复合材料杆温度应力的封闭解。
This machine applicable to a variety of packaging bags, multi-layer composite membrane made of prefabricated bags, paper bags can be applied.
本机可适用多种包装袋，多层复合膜制成的预制袋、纸袋均可应用。
The invention relates to a waterproof air and moisture permeable microporous film, a three-layer composite material and a preparation method and application thereof.
本发明涉及一种新的具有防水透气透湿功能的微孔膜及三层复合材料及其制备方法与用途。
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