naphthalin In A Sentence
Learn how to use naphthalin in a sentence and make better sentences with `naphthalin` by reading naphthalin sentence examples.
- Serials of naphthalin and tripolycyanamide have low water reducing efficiency, bad flow degree under low water cement ratio and sharp loss of concrete slump.
- The new type of high effective water - reducing agent we developed based on naphthalin series has characteristic of retardarce . it can reduce slump loss through its slow solution.
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