单词	welded long rail
释义	welded long rail 焊接长钢轨
随便看	long period constituent long period cost long-period cost long period delayed neutron long-period delayed neutron long period down warping long-period dynamic stability long period earth tidal gravity long period estrus long-period event long period fading longperiod fiber grating long period fiber grating long-period fiber grating Long-period fiber grating long period fiber gratings long-period fiber gratings long-period fluctuation long period grating long-period grating long-period grating pair Long period gratings long period ground motion long-period ground motion long periodic intermittent pulse