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- The pendulum of the clock in my room is a bear. 我房间的钟摆是小熊形状的。
- Friction causes a rolling ball to stop finally. 摩擦力使滚动的球最终停了下来。
- Constant friction wore out the heels of my shoes. 不断的摩擦磨损了我的鞋跟。
- Friction between two sticks can create a fire. 两个棍棒相互摩擦能起火。
- pendulum friction 摆动摩擦
- In the absence of friction belted machinery would not be used. 没有摩擦力，皮带传动的机器就无法使用。
- The pendulum swings with great regularity. 钟摆很有规律地摆动着。
- Back and forth swung the pendulum. 钟摆来来回回地摆动。
- The pendulum swung back and forth. 钟摆来回地摆动。
- Matches are lighted by friction. 火柴由摩擦而生火。
- The pendulum swung slowly to and fro. 钟摆在慢慢地来回摆动。
- There is a great deal of friction between the management and the work force. 劳资双方之间存在大量矛盾。
- The pendulum's swing is 12 inches. 钟摆的振幅为12英寸
- A friction match with a large head capable of burning in a wind. 耐风大头火柴一种能够在风中燃烧的通过磨擦点火的大头火柴
- Friction lowers the efficiency of a machine. 摩擦减低机器的效率。
- A pendulum swings back and forth. 钟摆前后摆动。
- The pendulum clock was invented in 1657. 钟摆是1657年发明的。
- Great rollers make vessels play pendulum. 大浪使船只摇摇晃晃。
- You could not walk if there were not some friction. 假若没有摩擦，你就不能行走。
- Adhesive friction, as of a wheel on a track or a tire on a road. 附着摩擦力粘附性摩擦，如车轮在轨道上或轮胎在路面上的
