单词	plain drill
释义	plain drill 普通条播机,扁头凿子
随便看	design trim design tubing design type design type approval design type calculation of beat exchanger design-type experiment design-type experiments design type of experiment design type of experiments design typification design typification test design ultimate load design under moderate earthquake design under test design under verification design unit Design Unit Engineering Report design units design unit specification design upon Design validation design validation and usability testing design value design value for strength of material design value method