• 窄轨距

narrow gun窄径电子枪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Narrowband Code Division Multiple Access窄带码分多址Narrow - band interference suppression窄带干扰抑制narrow pulse and ultra-wideband signal窄脉冲超宽带信号Narrow-Band Analog Mobile Phone Service窄带模拟移动电话服务标准narrow-sense multiple optimal solutions狭义多重最优解Narrow-Band Time-Domain Reflectometry窄带时间领域反射计narrow beam linear attenuation coefficient窄(X线)束线性衰减系数narrowband personal communications service窄带个人通信业务narrow-mindedness of the small producers小生产者的狭隘眼界narrow pit translation horizontally mining窄坑平移横采