单词	sharp fluting
释义	sharp fluting 锐缘柱槽
随便看	necessary minimum profit necessary natu re necessary notes necessary NPSH necessary observation time necessary of economy necessary operation necessary optimality condition necessary optimality conditions necessary parties necessary party necessary place necessary places necessary policy necessary posteriori propositions necessary precautions necessary preliminary necessary preparation necessary presence necessary price necessary price of labor necessary probation necessary procedures necessary product necessary product and surplus product