alternate operationsimplex operationup and sown working單: singular number fate; destin ...工: worker; workman; the working ...操作: operate; manipulate; handle雙向單工操作: two way simplex operation; two-way simplex operation手工操作人工操作: hand operation下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯
