friction marks造句

• And friction marks indicated that they did , indeed , once form part of a necklace or bracelet
  事实上，这些壳上的摩擦痕迹显示他们曾经是项链或手镯的一部分。
• Acceleration scuff : friction marks that occur when the tires on the drive wheels of the vehicle are turning faster than they would normally turn , given the speed of the vehicle
  加速度滑转：当车轮转动速度大于车轮正常转速时，驱动轮胎留在路面上的磨擦痕迹。
• In addition , this article also researched the friction marks of steel ball after long - time friction tests with sem images and spectrum analysis , and summarized the principle how to reduce friction and wear of three prescriptions
  另外,本文还利用sem图像和能谱分析等手段,对长磨试验后的钢球磨痕情况进行了研究,归纳总结出了三种配方的减摩抗磨和自修复机理。