Structure of superplasticizer was characterized by IR and effects of the product on fluidity of cement paste and water reduction for concrete were investigated.
利用IR表征了其结构，并考察了产品对水泥净浆流动度和混凝土减水率的影响。
2
Tile using a thin paste method, with partial replacement of gypsum wall board light brick walls and the use of reasonable waterproof coating, can be a direct reduction.
瓷砖采用薄贴法，用石膏板轻质隔墙部分代替砖砌墙以及采用合理防水涂布，都可以做到直接减排。
3
When editing audio files, you can cut, copy and paste parts of recordings, and then add effects like echo, amplification and noise reduction.