a unit of weight equal to one twentieth of an imperial or metric ton, in particular 英担(英制或公制吨的1/20),尤指 ■(亦作long hundredweight)(Brit.)equal to 112 lb avoirdupois (about 50.8 kg) (英)长担(等于112磅,即约50.8公斤) ■(亦作short hundredweight)(US)equal to 100 lb (about 45.4 kg) (美)短担(等于100磅,即约45.4公斤) ■(亦作metric hundredweight)equal to 50 kg 半公担(等于50公斤)