词汇	13railroad tie
释义	13railroad tie 铁道枕木
随便看	ideal structure course ideal stump Ideal subcoalgebra ideal sum ideal superconductor ideal surface ideal switch ideal synchronizing ideal synchronous machine ideal system ideal taper curve ideal teaching materials ideal temperature ideal textual environment ideal theory ideal theory of local rings idealthermalcycle efficiency ideal thermal cycle efficiency ideal thermal efficiency ideal thermal radiator ideal thermodynamic efficiency I dealt him a hard blow in the head ideal thin plate ideal throughput ideal thrust coefficient