gapyadj.[医]患张口病的gapn.缺口；裂缝；差距；空白gapped duplex带缺口的双链体gap financing补缺融资gap in wealth贫富差距gap null gate间隙零门gap detecting间隙检测gapless track无缝线路gap parameter间隙参数gap clearance对接点间隙,接头间隙gapped kernels间隙核gap coefficent隙缝系数