addition technique造句

例句与造句

1. Two - addition technique of flying ash and silica fume can meliorate durability of concrete ; air - entraining admixture possesses anti - freezing , descending ice point , and improving workability , and thereof it should be used in concrete . but controlling its dosage is very important to avoid strength loss
   发现粉煤灰和硅灰的双掺技术能够显著改善混凝土的耐久性能，引气剂具备防冻抗冻、抗渗及提高负温混凝土工作性的优点，在负温混凝土中应该加大使用范围，但必须控制其掺量，确保强度损失较小。
2. It's difficult to find addition technique in a sentence. 用addition technique造句挺难的