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Emphasis has been put on changes of structure properties such as crystallization, crystal cell parameter, BET surface area, average pore diameter and pore volume with addition amount of FCC decant oil under conditions that the ratios of toluene to FCC decant oil are 1∶1 and 2∶1 respectively.

结果表明,当剂油比为1∶1时,分子筛的结晶度和晶胞参数随催化油浆添加量的变化呈现先增加后减小趋势,当noil/nCTMAB=0.34时,其晶胞参数最大可以达到5.95 nm;当剂油比为2∶1时,随添加剂量的增加,分子筛结晶度降低,BET表面积成先增大后减小,而孔容和平均孔径呈逐渐增加趋势。

The analysis of the model parameters indicates that there are various diffusion behaviors, depending on the model parameters.

通过对模型中三个组合参数的分析,研究了参数的变化可能导致的不同的扩散行为

The variation regularity of joint size and the shear strength of fractal rock joints with different fractal dimensions were subsequently studied by using the numerical direct shear test method.

为了研究岩石节理抗剪强度参数取值中的尺寸效应问题,采用随机分形方法,重构了岩石节理剖面线,在此基础上,应用数值直剪试验方法,研究了不同分维值岩石分形节理抗剪强度参数随节理尺寸的变化规律。

What differ from that of the researchers in the past is the consideration of the direction of Hopf bifurcation with Dirichlet boundary condition , that is, the conditions when the Hopf bifurcation periodic solutions are orbitally asymptotically stable with asymptotic phase.Our basic idea come from the results given by Tang[30]. We adopt the method used by Hassard in the Hopf bifurcation theorem in [24], which is to judge the existence and the direction of Hopf bifurcation, and the stability of the Hopf bifurcation periodic solutions.

与以前的研究者不同的是,本文不仅讨论了在Dirichlet边界条件下系统的Hopf分支在以扩散系数为分支参数的情况下的存在性和分支周期解的空间非齐次性,而且更多的关注了系统在Dirichlet边界条件下Hopf分支解的稳定性及Hopf分支的方向,也即系统定态解在何种条件下,当分支参数如何变化时产生Hopf分支且分支周期解是带渐近位相轨道渐近稳定的。

MARC, to investigate the relationships among the key processing parameters and spinning forces. The spinning force is measured by means of electrometric method. The variation characteristics of the spinning force and the influences of the processing parameters on the spinning force are analyzed.

MARC,对单旋轮无芯模旋压成形过程进行了三维弹塑性有限元模拟,对旋压过程中几个关键工艺参数与变形力之间的关系进行了研究;采用电测方法测定了旋压加工过程的旋压力,分析了旋压力曲线的变化特征及不同工艺参数对旋压力的影响。

Aerosol plays an important role in global climate change and air pollution, and also an essential parameter in quantitative remote sensing.

气溶胶是研究全球气候变化和大气污染的重要参数,也是进行定量遥感必须获得的参数。

The structure of flow field and the aerodynamics along with the inner energy excitation and the variable flow conditions were analyzed in details.

采用L-B碰撞模型,分析了内能激发松弛的流场参数特性,从分子碰撞、分子与飞行器表面碰撞的角度,分析了不同来流条件下的流场参数的变化情况。

The impacts of antenna parameters, excitation frequency on the voltage were discussed in the theoretical part.

论述了电磁波通道式 MWD传输装置信道计算的等效传输线法,分析了天线参数、激励源频率等参数的变化对检测电压的影响规律,并通过计算探讨了影响电磁波传输质量的因素。

The design process is simple and can be simulated by the sophisticated SAW unit electrode and interdigital parameters.The parameters adjustment is very simple when filter center frequency and bandwidth changes.

设计过程简洁,可采用成熟的SAW单元电极和叉指参数进行计算机模拟,且当所设计的滤波器通带频率和带宽变化时,参数调整方便。

The electromagnetic responses of the finite size induction coils were evaluated, and the effects of the borehole mud ,casing pipe and radius of the induction coils were analyzed, the sensitivity of the electromagnetic response to the formation resistivity was checked against the crosshole measurements.

分析了金属套管井中有限尺寸线圈的电磁响应特征,讨论了井眼泥浆参数﹑套管参数和不同线圈尺寸对电磁测井响应的影响,考察了金属套管中电磁测井对地层电阻率变化的灵敏度。

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推荐网络例句

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。