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- Matches are lighted by friction. 火柴由摩擦而生火。
- To wear down or rub away by friction; erode. 磨蚀，磨损因摩擦而破损或擦伤；侵蚀
- Why heat can be produced by friction is clear now . 摩擦能产生热的原因现在清楚了。
- Why heat can be produced by friction isnow clear. 现在清楚了为什么摩擦能产生热。
- To wear down or rub away by friction;erode. 磨蚀，磨损因摩擦而破损或擦伤；侵蚀
- Why heat can be produced by friction is clear now. 为什么摩擦能产生热现在清楚了。
- A rubbing away or wearing down by friction. 摩擦,磨损,消磨:通过磨擦作用擦掉或消耗掉。
- Warmth, wear, or soreness produced by friction. 摩擦所产生的热、擦损或擦痛
- Why heat can is produce by friction is clear now. 为什么摩擦能生热现在已清楚了。
- ignition by friction 摩擦发火
- The meteor, rushing through the air, becomes intensely heated by friction and is usually completely vaporized. 流星快速掠过空气时，由于磨擦而变得非常热，通常被完全气化了。
- An electrical charge produced by friction between two objects. 摩擦电由两个物体摩擦产生的电荷
- Why heat could be produced by friction is clear now. 为什么摩擦能生热现在已清楚了。
- A gunlock in which powder is ignited by a match. 火绳枪用火柴点燃火药的枪机
- Fuel is ignited by the spark plug. 燃料由火花塞点火。
- Potential can be ignited by one spark. 无限潜能的爆发,源于小小的火花。
- It did not furnish an explantation for the heat generated by friction. 它未能圆满地解释因摩擦而产生的热。
- It did not furnish an explanation for the heat generated by friction. 它未能圆满地解释因摩擦而产生的热。
- Torches will be lighted by friction lighters or other approved devices only. 焊枪可以用摩擦打火机或其他经过批准的打火器点火。
- Their repressed emotions were ignited by her fiery speech. 她火爆的发言激起了他们压抑的情绪。
