narrowbeamn.狭窄射线(窄束)
narrowadj.有限的;狭窄的;精密的;度量小的n.海峡;隘路;狭窄部份v.变窄
narrow-bank amplifier[电] 狭频带放大器
narrow-band filtering窄带滤波
narrow-mout-hed jar小口瓶
narrow gauge locomotive窄轨机车
narrowing of middle ear中耳狭窄
narrow margin arbitrage低利套汇; 薄利套汇
narrow continuous clasp狭形连续卡环
narrow-gate amplifier窄选脉冲放大器
narrow margin of profit薄利
narrow shoulders/hips窄小的肩头/臀部