分选空间必须选用不导磁的耐磨损材料；
In order to realize the theory, the separation space must be un-conducted magnetic materials.
绿色陶瓷材料具有耐高温、耐磨损、耐腐蚀以及质量轻等优点，所以在建筑上广泛应用。
Green ceramic material is able to bear the high temperature, hard-wearing, corrosion-resistant and advantage that quality is light, so the extensive application on the building.
设计的阀门采用了金属-金属的平面硬密封结构，在流道附近采用耐磨损的材料，提高阀门密封面的磨损寿命。
The new designed valve has metal-metal plane hard airproof structure, using durably grinding material near the flowing road to improve the airproof surface usage life-span.
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