单词	难孕
释义	难孕 hard to settle
随便看	mechanical tuning characteristic mechanical tuning device mechanical tuning range mechanical tuning rate mechanical tunning range mechanical tunning rate mechanical turbulence Mechanical Turk mechanicaltwin mechanical twin mechanical twinning mechanical type mechanical type,acting on rear wheels mechanical type balance mechanical type classifier mechanical -type classifier mechanical type combiner mechanical-type dry pipe valve mechanical type exhauster mechanical-type exhauster mechanical type inflator mechanical-type inflator mechanical type lever mechanical type linear classifier mechanical type manometer