Wire wound resistors are made by winding the resistance wire on the alkali less ceramic core, then coated with noncorrosice, heat-proof and humidty proof material.

把电阻线绕在无硷性耐热陶瓷件上，外面加上耐热、耐湿及耐腐蚀之材料保护固定而成。

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The test results show that it can recover much more exhaust heat, and less exhaust resistance and lower noise than the original one.

实验结果表明，该装置回收排气余热量大，和原消声器相比，排气阻力较小，降噪效果明显。

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The flow resistance for water and air flowing through the mini-fin structure was less, while heat transfer coefficient was higher than in the sintered bronze porous structure.

与相近孔隙率的锡青铜烧结多孔结构相比，该微细板翅结构中的流动阻力大大减小，而对流换热能力却增强。

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This maintains a low resistance to the current, meaning that the electrons create much less heat than do nanoscale copper wires, which produce higher resistance on the nanoscale.

FORBES: The World's Smallest Electric Wire Is Four Atoms Wide