Freeze-concentration is a method of freezing and removing some water in natural fruit and vegetable juices with a view of obtaining high-quality concentrates or commercial fruit and vegetable juices.

冷冻浓缩是将天然果蔬汁中的部分水冻结成冰并将其分离去除，以得到高品质的浓缩汁或成品果蔬汁的浓缩方法。

youdao

According to the general pattern of ground water lowering, this paper suggested a volume calculation method in the natural river courses in the freezing period.

根据地下水退水的一般规律，提出了针对天然河道封冻期流量推求方法的建议。

youdao