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-tailed Starlingn.狭尾椋鸟Narrow-band technology窄带成像narrow leaved peppermint澳洲桉Narrowband Trunking Unit窄带干线装置narrow band ternary code窄带三进制码narrow-long slot parts窄长槽narrow angle coordinator窄角坐标方位仪Narrowbard ultraviolet B窄频UVBnarrowband communication窄带通信narrow-band absorption窄带吸收