...混凝土分析 机制砂生产线-上海卓亚矿 机制砂和河砂的试验对比 归纳出以下生产机制砂要求 c072细集料粗糙度试验仪yxl(流动时间法) 机制砂的石粉含量试验及对混凝土性能的影响 见证了中联重科首个机制砂实验基地的落成 机制砂具有以下特点:细度模数可以根据用户...
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在动态过程中，催化剂表面上的吸附物种浓度随时间而变化，从而可以获得稳态流动法所不能提供的信息。
Useful information provided by steady state flow method can also be obtained from dynamic experiment as the concentration of the absorbed species on the catalyst surface changes with time.
提出了一种新的与显式时间推进法、有限体积差分格式、粘性体积力法有效地配合使用的多重网格法来求解叶轮机械可压流动。
This paper puts forward a new multiple gird scheme, which is used with the combination of explicit time marching method, finite volume difference code and distributed body force.
并对方法的原理、试验步骤、适用范围以及对溶剂加热活化法的温度、时间和流动相流速对柱活性的影响进行了考察。
The principle and suitable range of application of the methods as well as the influence on column activation of activating Lemperature, tinge and solvent flow were investigated.
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