This method involves freezing the protein solution on the walls of a round bottomed flask and sublimating the liquid in a vacuum.
这个方法包括将蛋白质溶液在圆底烧瓶的瓶壁上冰冻，和在真空中让液体升华。
2
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。
3
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.