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。
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。
When editing audio files, you can cut, copy and paste parts of recordings, and then add effects like echo, amplification and noise reduction.
编辑音频文件时，你可以剪切，复制和粘贴部分录音，然后添加效果，如回声，放大和噪音减少。
Paste wettability of surface is clecreased by clecreasing the surface tension of substrates, and the reduction in wettability improves effectively the screen print resolution.
文章着重研究基板的表面张力可以有效地改进丝网印刷分辨率。
Paste wettability of surface is clecreased by clecreasing the surface tension of substrates, and the reduction in wettability improves effectively the screen print resolution.
文章着重研究基板的表面张力可以有效地改进丝网印刷分辨率。
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