peg 400造句

例句与造句

1. Due in part to its low toxicity, PEG 400 is widely used in a variety of pharmaceutical formulations.
2. The numbers that are often included in the names of PEGs indicate their average molecular weights ( e . g . a PEG with n = 9 would have an average molecular weight of approximately 400 daltons, and would be labeled PEG 400.
3. It's difficult to find peg 400 in a sentence. 用peg 400造句挺难的