... necked fracture test 颈扁断裂试验... three-necked flask 三颈烧瓶 necked-down section 收缩断面 ...
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This paper introduces a simple semi micro-distillation apparatus, In this apparatus, a three-necked flask is used as steam generator.
本文介绍一种用三颈圆底烧瓶作为蒸汽发生器的半微量水汽蒸馏装置。
Currently, the apparatus used in distillation and other chemical reactions include round bottom flask, two necked bottle, three necked bottle, and etc.
现行的用于蒸馏和化学反应的烧瓶类玻璃仪器，有园底烧瓶、两颈瓶、三颈瓶等。
In a 250-cc. three-necked, round-bottomed flask provided with a mechanical stirrer is placed 21.2g. (0.2 mole) of benzaldehyde , and 18.6 g. (0.2 mole) of aniline is added with rapid stirring.
在250毫升。三口，圆底烧瓶用机械搅拌器提供放置二十一点二克。（0.2摩尔）苯甲醛，和18.6克（0.2摩尔）苯胺的加入快速搅拌。
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