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difference of densities中文是什么意思

  • 上下密度差

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  • Difference of densities
    上下密度差
  • Because of the difference of density , the particle with big conductivity factor will subside in the organic phase change materials , so the orginic phase change materials were solided . the best technology was determined , which the solidation fatty alcohol was made by two steps , the solidation temperature is at 80 , and the proportion of fatty alcohol : fatty acid : sodium hydroxide is 96 : 3 : 1
    由于密度差的存在,高导热系数粒子在有机相变贮能材料中会产生沉降,为了克服这一现象,对有机相变贮能材料进行了固化研究,确定了制备固化十二醇的最佳工艺条件,即采取两步法、固化温度为80 、添加比例为十二醇:硬脂酸:氢氧化钠= 96 : 3 : 1 (质量比) 。
  • The experiments reveals that : the amount of water vapor transfer is affected by both water content gradient and the value of water contents , when the water content of one end is approximate , the water content gradient increases , then the amount of water vapor transfer increases ; when the water content gradients are approximate , the amounts of water vapor transfer can get great differences if the water contents are different , under this condition when the water content of the dry soil is very little , the amount of water vapor transfer is much greater ; the differences of density hav n ' t great effects on water vapor transfer , but have some effects on the admixture transfer , when the density is smaller , the amount of admixture transfer is greater . the water vapor transfer finishes more quickly and need less time , and the liquid water finishes more slowly and need less time
    当一端含水量一定时,增加含水量梯度,则气态水迁移量增大;当含水量梯度相近时,气态水迁移量随含水量不同可能相差很大,这种情况下当较干段含水量特别小时,气态水迁移量相对较大;密实度的大小对于气态水迁移的影响并不明显,但对液态水和气态水的混合迁移有一定的影响,在相同的实验时间内,土体密实度较小,则混合迁移量相对较大;气态水迁移完成速度较快,所需时间较短;液态水迁移完成速度较慢,所需时间较长。
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Last modified time:Sun, 10 Aug 2025 00:29:56 GMT

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