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1)  true density
真密度;真比重
2)  true density
真密度
1.
Determination of true density in high purity silica powder;
高纯硅微粉真密度的测定
2.
Effect of sample kind, samlpe size, experimental liquid, vacuum in the container and experimental temperature on testing result of true density of refractory were studied and testing data was analyzed , It showed that accuratity of testing result can be ensured by using proper method.
通过试验研究了试样种类、试样粒度、选用的试验液体、容器内的真空度以及试验温度对耐火材料真密度检测结果的影响,并对检测数据进行了分析,表明采用适当的检测方法可以确保检测结果的准确性。
3.
The immersion method of true density determination for silica refractory brick is introduced, the uncer-tainty of the test result is evaluated and expressed.
采用浸液法测定硅砖的真密度,对测量结果的不确定度进行了评定和表述。
3)  true volume and density measurement instrument
真密度仪
1.
The principal of measurement of a true volume and density measurement instrument ULTRA1000 and measurement method of the close (open) cell content for rigid PU foam using the ULTRA1000 were introduced.
介绍了ULTRA1000真密度仪的测量原理,将ULTRA1000真密度仪用于硬质聚氨酯泡沫材料的闭(开)孔率测试,并与ISO4590—2002标准方法进行了比较。
4)  real density
真密度
1.
The real density ,electrical resistivity and magnetoresistance of several pitch derived carbon samples were tested.
利用X射线衍射方法(XRD)检测了所得沥青炭试样的石墨化度;对比分析了几种试样的真密度、电阻率和磁阻。
2.
In the light of ultimate analysis data and density of specific gravity liquid, we put forward a formula to calculate the real density of vitrinite, and get a relatively exact computational formula of condensation ring index.
提出了镜质组试样真密度的计算公式,并改进了缩合环指数的计算式。
5)  density [英]['densəti]  [美]['dɛnsətɪ]
真密度
1.
After studing the NiFe_2O_4 spinel content 、density and porosity of the sample,we have found good technics for making NiFe_2O_4 spine.
通过对NiFe2O4尖晶石的含量、真密度以及开口孔隙率等重要指标进行研究比较,最终得出了制备NiFe2O4尖晶石最佳工艺条件,并用最佳工艺条件重新制取试样进行热腐蚀实验。
6)  wet real density
湿真密度
1.
The content of the impurity in the discharge liquor should be examined,and the state of balanced water content should be expounded;the steps to determine the wet real density of resin should be adjusted.
运用国标测定离子交换树脂,对旧树脂的酸碱处理不能限于国标中次数,应检验排出液中杂质含量;细化了平衡水量的状态;调整了树脂湿真密度测定的步骤。
补充资料:真密度
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性质:多孔固体颗粒扣除了内部孔隙后的密度。对催化剂又称骨架密度。若催化剂质量为m,催化剂骨架体积为V,真密度ρ=m/V。它是单位体积催化剂骨架或固体部分(不包括颗粒之间间隙及颗粒内微孔体积)的质量。可以用异丙醇或He置换法,在真空容量法吸附装置中测定。

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