基本解释[機械工程]溼砂心型英汉例句雙語例句Green-sand is easy to prepare by mixing and needs no treatments after formation. It can be poured immediately after core setting.溼型砂混制簡單，成型後不需要任何処理，下芯後可澆注。green sand core更多例句专业释义機械工程溼砂心型