性摩擦

Because it owns many excellent properties such as low density, higher hardness and red-hardness to carbide, chemical stability, good inoxidizability, less friction coefficient to steel, higher thermal expansion to carbide, and contains no or less resource-limited and expensive WC and Co, it is applied to industrial production to promote work efficiency and decreases the cost.

由于其具有密度低、硬度和红硬性高于硬质合金、化学稳定性和抗氧化性好、对钢的摩擦系数小、热膨胀系数高于硬质合金等性能特点，再加上其不含或少含资源有限、价格昂贵的WC、Co物质，应用于工业生产有利于提高工效、降低成本，因而国内外对Ti基金属陶瓷进行了大量的研究，同时其作为新型的刀具材料在金属切削领域内也得到了广泛地应用。

So, suspicious cheapskates and manipulative marketers are probably rubbing their hands in glee.

因此，可疑cheapskates和操控性的营销可能是摩擦，在他们的手中，吉利。

Advantageous physical and chemical characteristics, the highly purified and ultra-fine fused spherical quartz powders (spherical silica powder—SSP) become indispensable for packing and sealing materials in LSI and SLSI. The actuality of research and development of SSP in China is studied and the international situation of production is also introduced briefly.

高纯超细熔融球形石英粉由于具有高纯度、高耐热、高耐湿性、高可靠性、高填充量、低粘度、低放射性、低应力、低膨胀、低摩擦系数等优越的物理化学性能，在大规模、超大规模集成电路的基板和封装料中，成了不可缺少的优质材料。

Warm some sesame seed or wheatgerm oil in your palms, then press – don't rub – on to your skin.

取适量温性芝麻油或麦芽油在掌心，轻轻按在皮肤上，记住，不要在肌肤上来回摩擦。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。