Cam: A device for converting circular or rotary motion into reciprocating motion. It is a disc or collar with an irregularly shaped edge, which operates in contact with a rod or lever, and causes it to oscillate, or to move to and fro.
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美
- 凸輪:把旋轉動(dòng)力轉為往復力的機件。它是一個(gè)不規則形的圓碟或圓環(huán)，和一個(gè)桿或棒連接運作，使它上下或往來(lái)擺動(dòng)。
