分散度

The occurring of autoreduction of Pt〓 ions is avoided on L zeolite, therefore the dispersion and aromatization reactivity of Pt/L zeolite is superior to that of Pt/β zeolite.

二。同样研究载Pt化合物在L沸石上的分解，发现Pt〓离子不被自还原，因而Pt粒子能保持较高的分散度，芳构化性能也更为优异。

The matrix effect was corrected by theoretical a influence coefficient method. Moreover, flux dilution rate and fusion time were discussed. The mass ratio of sample to flux was chosen as 1 to 15. The fusion time of sample closen was 15 min. The concentration of the sample in the flux was proved to be suitable for the XRF determination of both components of macro and micro amount.

对稀释比、熔样时间等进行了探讨，结果表明，试样和熔剂的质量比以1：15、熔样时间以15 min为好，所得试样在熔剂中的分散度适当，可同时适合试样中高、低含量组分的测定。

The results show that in the processes of shake 2out and finishing , molding , sand preparation , pouring , melting and coremaking , all the dusts are silica2 containing dust . The respirable dust （ 5 μm） occupies as high as 6915 %~ 78 %. Silica2containing dust in foundry air is not packed by Al. It indicates that silica dust in foundry air is fresh and highly pathogenic.

结果表明，清理、造型、配砂、制芯、熔化和落砂等工序游离SiO2 含量均超过10 %，分散度小于5μm的可吸入性粉尘偏高（6915 %~78 %），空气中矽尘没有Al 的包裹，是新鲜的粉尘，致病性强。

A mathematic model for predicting the mix dispersity has been established by using the regression analysis based on single internal mixer.

从单台机的角度运用回归分析方法，建立了预测混炼胶分散度的数学模型。

A mathematic model for predicting the mix dispersity has been established by using the regression analysis based on single internal mix er.

从单台机的角度运用回归分析方法，建立了预测混炼胶分散度的数学模型。

Particle size distribution;granulometric distribution

各种粒径范围的粒子质量或粒数分别占粒子总质量或总粒数的百分率，也称分散度。

The structure of the composite was characterized and analyzed by XRD, FTIR and TG. The test results proved that the structure of bentonite did not change except that the interlamellar spacing increased a little during its aggregation. The dispersion property and thermal stability of the composites was enhanced thereby.

使用X射线衍射、红外和热重对复合材料的结构进行了表征和分析，结果表明，膨润土在聚合过程中除了层间距有所增大外，基本结构不变，而且分散度提高；吸水性复合材料的热稳定性提高。

A series of Pd/α-Al2O3 catalysts for CO coupling reaction were prepared with α-Al2O3 made from different methods. The effect of pore-foaming agent and peptizer on the support and the effect of alumina pore structure on the dispersion and activity of catalysts were studied.

考察了不同制备方法得到的α-Al2O3载体对CO催化偶联制草酸二甲酯反应的影响，研究了致孔剂和胶溶剂对载体的影响以及氧化铝孔结构对催化剂分散度和活性的影响。

The results showed that adding pore-foaming agent and peptizer didn't affect the composition and crystal phase of support but changed its pore structure. Pd dispersions on the supports of different pore structure were the same.

结果表明，胶溶剂和致孔剂的加入只改变载体的孔结构而不影响其成分和晶相，孔结构不同的载体上Pd的分散度相同。

Meanwhile according to the requirement of ISO9000,combined with the production process of prebake anode,the quality control measures taken by Smelting Plant of Yankuang Ke'au Aluminium Co.

实现制造过程的质量控制其内涵包括两个方面：一是要保证优化工艺，提高产品质量，二是要保证稳定不变的工艺条件，得到分散度极小的均一产品质量。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。