更多boric例句

1. It’s the naturally derived form of pyrethrin, which, like boric acid, is deadly to insects, but has very low toxicity to humans and other mammals.
2. Qualitative tests demonstrated the presence of antipyrin, free boric acid and sodium borate.
3. The composition given is: sulphur, niter, cinnamon and boric acid in gaseous solution.
4. She cried a bit when there was no more to be had, but a warm bath with some boric acid in it made her sleepy.
5. Formaldehyde, boric acid or salicylic acid may be added to preserve the milk.
6. If boric acid either free or combined is present, the turmeric paper will be turned to a cherry-red color.