例句與造句

1. Such a hardening bath often used aldehydes, such as formaldehyde and glutaraldehyde.
2. The solution of this material in caustic soda is passed through the spinneret and the cellulose is regenerated in the hardening baths that remove the copper and ammonia and neutralize the caustic soda.
3. It's difficult to find hardening bath in a sentence. 用hardening bath造句挺難的