Quadjo卡乔quadvt.用空铅填abbr.四边形（=quadrangle)abbr.四组；四胞胎之一（=quadruplet)abbr.四声道的（=quadraphonic）abbr.四头肌（=quadriceps）abbr.空铅；铅块（=quadrat）n.四方院子；四胞胎之一；嵌条；成套的四件东西quadrupole mass filter四极滤质器quadrate cross section方形截面quadrature downconvert正交混频quadtree encoded image四叉树编码图像quadric transformation二次变换quadrant neighbor list象限邻居表quadrature of a circle求圆的面积quad channel autopilot四通道自动驾驶仪quadrantal cephalalgia[医] 象限头痛quadrant angle of fall落地俯角