Vace瓦采vacabbr.休假(=vacation)abbr.真空吸尘器(=vacuum)Vaccarini瓦卡里尼Vacondeus瓦孔德乌斯vac cines疫苗vaccinist种痘员vacuvette抽空取样器vacamaticadj.真空自动式vacuscope真空仪Vacquerie瓦克里vacuating抽真空Vaccarone瓦卡罗内

1. The mixture is then distilled in vacuo.
   然后将混合物进行真空蒸馏。