带叶片的转筒结晶器drum: n. =drumlin. vaned drum: 带叶片的转筒drum cylinder crystallizer: 圆筒式结晶器; 转筒式结晶器rotating drum multistage crystallizer: 转筒多级结晶器; 转筒式多级结晶器vaned: 有叶片的; 有翼下载手机词典可随时随地查词查翻译