Modified direction of POM are high modulus, creep resistant, lubrication and processing high precision products.
聚甲醛的改性方向是提高它的刚性、耐蠕变性、润滑性，成型高精度制品。
The current research and application status of the creep resistant magnesium alloys used for high pressure die casting and for gravity casting in automobile were reviewed.
综述了压力铸造和重力铸造两大类抗蠕变镁合金的研究开发现状及其在汽车上的应用状况。
The experiment results show that the creep resistant properties of the three dimensional four directional braiding composites are worse than five directional braiding composites.
结果表明，三维四向编织复合材料的蠕变性能低于五向编织复合材料；编织角小的材料抗蠕变性能较好；
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