backward-forward counter
计 双向计数器; … Read the rest
计 双向计数器; … Read the rest
电 回波磁控管… Read the rest
电 回波振荡器… Read the rest
电 回波管… Read the rest
*[,bækwә’deiʃәn]
n. … Read the rest
ad. (无比较级)向后, … Read the rest
n. (无比较级)向后, … Read the rest
电 O型反向波振荡器… Read the rest
*[‘bækwәdz]
ad. … Read the rest