round bottomed flask
常见例句
- 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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