This paper introduces a simple semimicro-distillation apparatus,In this apparstus,a three-necked flask is used as steam generator.
本

一种用三颈圆底烧瓶作

发生器的半微量水

装置。
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You surely encountered this in a science textbook at some point--but to refresh your memory: in 1952 Stanley Miller and Harold Urey simulated the conditions of early earth by sealing water, methane, ammonia, and hydrogen in a glass flask.
你肯定科学课本上见过它,不过为了唤起回忆还是说一下:1952年,Stanley Miller 和Harold Urey 将水、甲烷、氨气和氢气封如玻璃烧瓶内,来模拟地球早期的情况。