instantaneous molal concentration

例句：

1. 1. The event was overin an instantaneous manner.
   该事件以瞬间的方式结束。
2. 2. He arrived at theairport just in time for his flight.
   他刚好在飞机起飞前到达机场。
3. 3. Thescientist conducted experiments in an instantaneousmanner.
   这位科学家以瞬间的方式进行了实验。