制备: lining-up; preparation塔: Buddhist pagoda; pagoda板: board; plank; plate数: frequently; repeatedly制备级塔板数: preparative scale plate number塔板数: effective plate number; number of plates分析塔板数: amalytical plate number; analytical plate number理论塔板数: number of theoretical plates; number of theroretical plates; theoretical plate number; theoretical tray number实际塔板数: actual column plate; actural plates; number of actual plates; number of actual trays塔板数目: plate number有效塔板数: effective number of plate; effective plate number; effectivenumberofplate; neff; number of effective plates柱塔板数: column plate-count有效理论塔板数: effective theoretical plate number; number of effective theoretical plates最小理论塔板数: minimum theoretical number of plate板数: theoretical plate number塔板: column plate; column tray; dump point; tower plate; tower tray; tray floor制备: lining-up; [化学] preparation 氧的制备 preparation of oxygen理论板数: number of theoretical plate,理想（塔）板数: theoretical plate每叠板数: no.of panel per stack模板数据: template data有效板数: effective plate number; number of effective plate; number of theoretical plates形塔板: uniflux tray抚塔板: float valve tray; valve tray转塔板: turret plate
