| 单词 | pitch circle |
| 释义 | pitch circle in British Englishnoun an imaginary circle passing through the teeth of a gearwheel, concentric with the gearwheel, and having a radius that would enable it to be in contact with a similar circle around a mating gearwheel pitch circle in American English an imaginary circle that intersects the teeth of a gear at the actual points where the teeth mesh with another gear: the pitch circles of two enmeshed gears are tangent |
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