防眩投光灯 材质及特性： 铝压铸灯体，高纯铝反射器，5mm钢化安全玻璃。
Material and characteristics: Die-casting aluminum body, high purity aluminum reflector, 5mm thick shockproof safety glass.
目的研究比较不同材质矫治垂直曲及不同形状的矫治曲的力学特性。
Objective To compare the mechanical characteristics of vertical loops with different materials and different shapes.
皮带表面不同的材质、厚度及花纹决定皮带的附着力、物理、化学及机械特性。
Strap surface different material quality, Thickness and tracery decide strap 's adhesive power, Physics, Chemistry and mechanical characteristic.
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