The variation of true relative density ( TRD) and volatile of16 different rank coals during coking process were studied. 研究了16种不同煤阶煤成焦过程中真相对密度及挥发分随温度的变化规律。
Determination of true relative density of coa GB/T217-1996煤的真相对密度测定方法
Discussion on the principle and measurement of helium replacement method for testing true relative density 氦气替换法测定煤真相对密度的原理与测试
Result: The characteristics of CT findings of this disease were: true and false lumens with different density and intimal flap separating, and the inward moving of the calcified inner wall. 结果:CT诊断的直接征象为不同密度的真、假两腔及剥离的内膜瓣、钙化内移的内膜。
This paper discussed on how to improve the accuracy of coal true relative density measurement in temperature control, blank experiment, process control and enhancing management. 从温度控制、空白试验、操作过程和加强管理等方面,阐述了如何在煤的真相对密度的测试过程中提高测定的准确度。
True density and specific gravity of your sample are displayed. 样品的真密度和比重都能够显示出来。
Method for the determination of true density of ion exchange resins in wet state GB/T8330-1987离子交换树脂湿真密度测定方法
Coke-determination of true relative density, apparent relative density and porosity 焦炭--真实相对密度、视在相对密度和孔隙度的测定
With discussion of test method for true density of silicon liner, a new method to test true density was found, of which the correctness was inferred in theory and testified in practice. 通过对硅砖真密度试验方法的探讨,分析找出了一种新的测试方法,并在理论上加以推理,在实践中加以验证。
Determination of true relative density of coal by helium replacement method was researched in this paper. 就氦气替换法测定煤的真相对密度进行了研究。
Initial work that determine the true density of ceramics with soaking process was made, which do matter to the true density of ceramic colorant and grains distribution, as well as chemical composition and crystal construction. 采用浸液法测定了陶瓷色料的真密度,对陶瓷色料的真密度与颗粒分布、化学组成和晶体结构的关系作了初步研究。
Effects of Phase Composition of High Duty Silica Bricks on Its True Density and Thermal Expansion 高级硅砖的矿相组成对其真密度、热膨胀性能的影响
True density separation method for investigation of formation and combustion characteristics of unburned carbon in fly ash 用真比重分离法研究一种飞灰残炭的生成途径和再燃特性
Determination of true density in high purity silica powder 高纯硅微粉真密度的测定
Crystallinity, true density and intrinsic reactivity of intermediate temperature coal char 煤焦的晶格结构、本征反应活性和密度初探
Analysis and Study on True Density Determination for Refractory 耐火材料真密度检测的分析研究
Variation of true relative density and volatile during coking process of different rank coals 不同煤阶煤成焦过程中密度及挥发分的变化
This paper discusses theoretically the problem of recovering true amplitude of sign-bit seismic recording. It gives respectively the error formulas in recovering true amplitude when probability density of random noise is in uniform distribution and in normal distribution. 本文从理论上讨论了恢复符号位地震记录真振幅的问题,分别提出了随机噪声的概率密度呈均匀分布和正态分布时恢复真振幅的误差公式。
At a specific layer of a jig bed, its parameters as bulk density, true density, ash content, and density fractions bear a certain relationship. 跳汰机床层某一位置的散密度、真密度、灰分、各密度级含量等床层参数之间存在着一定的相互关系。
Determination and study of the true density of ceramic colorant 陶瓷色料真密度的测定和研究
The determination of true density in high purity silica powder is studied by the method of boiling and taking off gas. 研究了煮沸脱气测定高纯硅微粉真密度的方法。
Moreover, the relations between resistivity and true density, particle sizes of anthracite, input and output feed, length of calcination section, current density are also analyzed. 另外还分析了电阻率与真密度、原煤粒度分布、加排料量、煅烧区长度、电流密度之间的相关性。
In industrial production, but also by determination of true density of the product to do its purity analysis. 在工业生产中,也通过对产品的真密度测定来做其纯度分析。
The apparent density and true density of the polymeric adsorbent was an inverse proportion for percent of divinylbenzene in monomers, but the pore volume and the surface area was direct proportion to it. 测定结果表明树脂的表观密度和骨架密度与二乙烯基苯在总单体中所占的百分数成反比,而树脂的孔容和比表面积与其所占的百分数成正比。
The lattice parameters of calcined coke and foreign needle coke were similar, true density and ash content reached the new Japanese cosmetic company standards. 所制备的煅后焦的晶格参数与国外针状焦相近,真密度、灰分含量等性能均达到日本新日化公司标准。
The regular of mechanical properties of semi-solid workpiece with local loading were investigated according to true density and mechanical properties of different locations of workpiece. 通过对在不同测缸压力条件下成形件的真密度、力学性能的研究,探讨了局部加载对半固态成形件力学性能的影响规律。
The analysis of the experimental results tell us, true density changes regularly, is not affected by the process of making pottery, and can be used as a parameter in the study of pottery. 对试验结果的分析发现,真密度变化比较规律,不易受胎体制作过程中操作方式的影响,适合作为陶器研究中的参数。
We introduced true density in pottery physical attributes to construct a new combining research method with porosity, true density and density. 我们在陶器物理属性研究中引入真密度,形成气孔率、真密度、密度相结合的研究方法。