释义
n.
Brit. a knitted garment typically with long sleeves, worn over the upper body
〈英〉 (尤为长袖)毛线上衣。
historical a loose outer jacket worn by sailors
〈史〉 (水手穿的)宽松短上衣。
N. Amer. a pinafore dress
〈北美〉 围裙。
n.
a person or animal that jumps
跳跃者;跳高运动员;跳跃的动物。
(亦作jumper wire)a short wire used to shorten an electric circuit or close it temporarily
跳线,跨接线(一种用于缩短或暂时关闭电路的短线)。
Nautical a rope made fast to keep a yard or mast from jumping
【航海】 支索(防止帆桁或桅杆移动而系紧的绳索)。
a heavy chisel-ended iron bar for drilling blast holes
钻孔机;冲击钻杆(一种末端为凿子,用于钻凿爆破孔的重铁杆)。
a mushroom-shaped brass part in a tap which supports the washer
阀芯(水龙头里托住垫圈的蘑菇状铜制部件)。
词源
"mid 19th cent. (in sense 2): probably from dialect jump ‘short coat', perhaps from Scots jupe ‘a man's (later also a woman's) loose jacket or tunic', via Old French from Arabic jubba. Compare with JIBBA."