• 研究表明着扩反应时间增加产物相对分子质量增大但是破乳效果反应时间增加呈增大减少的趋势。

    It is shown that while the chain extending reaction time is increased, the demulsifying effect of the products increases at first and then decreases a certain period later.

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  • 反应温度木糖初始浓度相同时,糠醛收率醋酸浓度增加呈显增加降低变化趋势;

    At given initial concentration of xylose and temperature, furfural yield can firstly increase and then decrease with the increasing of the concentration of acetic acid.

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  • 注浆完成浆体水泥水化反应进行浆体水分的渗透损失,浆体体积收缩造成地层损失并引起地层位移沉降

    With the hydration of cement and liquid loss after backfill process being completed, the grout volumes shrinkage leads to ground loss and induces the ground movement.

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  • 注浆完成浆体水泥水化反应进行浆体水分的渗透损失,浆体体积收缩造成地层损失并引起地层位移沉降

    With the hydration of cement and liquid loss after backfill process being completed, the grout volumes shrinkage leads to ground loss and induces the ground movement.

    youdao

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