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cos n.【植物;植物學】科斯(島產的)長葉萵苣。

cosa nostra

To obtain an accurate measure of the precessional rate one has to attenuate the signal proportional to torquing current by cosβ . 為了準確測量進動角速度,必須使與加矩電流成比例的信號衰減cos倍。