单词	closed observation
释义	closed observation 闭合观测
随便看	vacuum modulator pressure vacuum mold vacuum molding vacuum mold unloader vacuum monochromator vacuum mortar suction technique vacuum motor vacuum mould vacuum moulding vacuum mo u lding vacuum moulding machine vacuum moulding plant vacuum moulding process vacuum-mould method vacuum mould unloader Vacuum-moumd preloading vacuum mounding preloading method vacuum-mound preloading method vacuum mud-jack vacuum mud jacking vacuum mud-jacking vacuum mud jacking technology vacuum mud-jacking technology vacuum mud-jack process vacuum mud-pressing