名詞 cam:

1. a river in east central England that flows past Cambridge to join the Ouse River
   同義詞：River Cam, Cam River
2. a rotating disk shaped to convert circular into linear motion

1. Miss Cam is qualified for joining the club.
   蘭蒙小姐有資格參加俱樂部。
2. A projecting cam, as on a rotating shaft, that activates another machine part.
   凸輪如轉(zhuǎn)軸上突出的挺桿，使另一個(gè)機(jī)器零件活動(dòng)
3. The movements of trade cam be graphed out, enabling the firm to plan their future markets and advertising.
   貿(mào)易情況能用圖表表示出來，以便該公司能規(guī)劃未來的市場和廣告。
4. A rod moved by a cam to operate the valves in an internal-combustion engine.
   閥門挺桿通過凸輪轉(zhuǎn)動(dòng)的桿，用來操縱內(nèi)燃機(jī)的閥門

cam

n.（名詞）
An eccentric or multiply curved wheel mounted on a rotating shaft, used to produce variable or reciprocating motion in another engaged or contacted part.
凸輪：安裝于旋轉(zhuǎn)軸上的偏心輪或復(fù)合曲線輪，用以使相連的或相接觸的其它部件產(chǎn)生多變的或往復(fù)的運(yùn)動(dòng)

來源：
Dutch kam [cog, comb] * see gembh-
荷蘭語 kam [輪齒，梳] *參見 gembh-