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- Sprocket: A toothed wheel used to transport perforated motion picture film. 扣片齿轮：有齿的轮子，以传送有齿孔的电影胶片。
- A toothed wheel. 齿轮带齿的轮
- The tab contains a toothed wheel which is driven at a high angular velocity by the impinging airstreams. 舵片上有一个带齿的轮，这个轮受到气流的冲击而高速转动。
- Gear: Machine component consisting of a toothed wheel attached to a rotating shaft. 齿轮:一种机械零件，固定在旋转轴上的带齿的轮子。
- These early mechanical clocks worked by using a lever that pivoted and meshed with a toothed wheel at certain intervals. 这些早期的机械钟表的工作，通过使用杠杆，心点和啮合与齿轮，在某些时间间隔。
- The most common example of a machine element is a gear, which, fundamentally, is a combination of the wheel and the lever to form a toothed wheel. 机械元件最常见的例子是齿轮，从根本上说，齿轮是轮子和杠杆的一种集合形成一个齿形的轮子。
- The most common example of a machine element is a gear, which, fundamentally, is a combination of the wheel and the lever to from a toothed wheel as illustrated. 机械元件最普通的一个例子就是齿轮,从根本上说,它是轮子和杠杆的一种联合形成插图中齿轮的样子。
- A film of mucus and bacteria on a tooth surface. 齿菌斑牙齿表面一层粘液和细菌的膜
- a toothed wheel for making a row of perforations 用来打一系列孔的齿轮
- A sensitive nerve in a tooth can cause great pain. 牙神经易受损伤，可产生巨痛。
- a toothed wheel for making a row of perforations. 用来打一系列孔的齿轮。
- A crown for covering or sealing a tooth. 齿冠遮盖或密封牙齿的冠状物
- The emergence of a tooth through the gums. 长牙牙齿突然从牙床里长出
- This toothed wheel should be meshed with that one. 这个齿轮应该与那个相吻合。
- The part of a tooth between the crown and the root. 牙颈在牙冠和牙根之间的部位
- To tear up(cloth or rags) in a toothed machine. 扯碎在有齿的机器上拆碎布或（破布）
- He went to the dentist and had a tooth crowned. 他去看牙医把牙镶了。
- You can't feel at ease with a tooth ache. 牙痛时说什么你也不会好受的。
- To crush(flax or hemp) in a toothed device. 压榨用齿形装置压榨（亚麻或大麻）
- The old man broke a tooth on a bone. 这老人咬上骨头把一颗牙折断了。
