If no crystals form, scratch the sides of the flask with a glass rod in order to induce crystallization.

如果没有结晶形成，可以用玻璃棒刮一下烧瓶的瓶壁以诱导结晶形成。

youdao

If no crystals form, scratch the sides of the flask with a glass rod in order to induce crystallization.

如果没有结晶形成，可以用玻璃棒刮一下烧瓶的瓶壁以诱导结晶形成。

youdao