concentration time

• 浓缩时间,富集时间

concentration time的用法和样例：

例句

1. The adoption of reduced pressure concentration shortens the time for con-centration,avoiding thr destruction to effective omponent inside the thermal sensitive material.
   由于菜用减压浓缩，故浓缩时间短，且不会破坏热敏性物料的有郊成份。