比高

In this paper, two assemblies of special test equipments have been designed and fabricated by authors in our laboratory: namely Catalyst Molding Process Analyzer and Catalyst Mechanical Process Tester. These new skills are developed for the dynamic studies on whole mold forming process and crushing process of Fe-Cr WGHS catalyst pellet. Based on the orthogonal experimental design, the effects of some factors during the forming process of solid catalyst, such as predensification proportion, calcination time, calcination temperature and content of graphite on the mechanical strength of catalyst pellets are systematically examined, and the molding conditions have been optimized. Based on the experimental data, the relationship between catalyst density and forming pressure are educed, and the physical significances of some related parameters are described. The parameter of macro scopic elastic moduls has been suggested to character the mechanical properties of molding catalyst. The effects of molding pressure on mechanical properties of catalyst pellets are discussed, and results show that there exists a optimal molding pressure for the ideal mechanical properties: when over-high or over-low pressure is applied, the specific surface area and side crushing strength of catalyst pellets will decreased. The "rebound effect" will be undermined by the unsuitable pressure maintain process, resulting in the apparent decrease of mechanical strength of catalyst pellets.

本研究通过自行设计制造的催化剂模压成型过程分析仪（Catalyst Molding Process Analyzer， CMPA）和催化剂力学性质测试仪（Catalyst Mechanical Properties Tester， CMPT），以Fe-Cr系高温变换催化剂片剂为研究对象，对成型过程和受压破碎过程提供了全过程动态研究的新手段；本研究利用正交实验设计方法考察了固体催化剂成型过程中诸因素（包含预密致比例、煅烧时间、煅烧温度和石墨含量等）对催化剂成型体强度的影响，并对成型条件进行了优化；根据实验结果，关联确定了固体催化剂成型过程中的密度－压力关系式，并对方程中诸因子的物理意义进行了描述；提出了一种利用宏观弹性模量来表征成型催化剂的力学性质的方法；研究讨论了成型压力对催化剂成型体强度性质的影响，结果表明：对于催化剂成型体的强度和比表面性质，成型压力存在着一个最佳值，过高的成型压力会导致比表面积和侧压强度的降低；不适当的成型压力的维持时间会破坏&压力回弹&作用，造成催化剂成型体的机械强度明显降低。

Carmichaeli leaves were studied after spraying salicylic acid 2 days before inoculation with Septoria aconite Bacc.

用5mmol/L的水杨酸对附子抗病品种和感病品种分别进行诱导，两天后接种乌头壳针孢，研究处理后附子叶片相关酶活性的变化，结果表明，SA诱导后能明显增强附子叶片内POD、PPO、PAL的活性；诱导接种处理比对照接种处理酶活性增加更为明显，同时抗病品种比感病品种酶活性更强，增加幅度更大，高酶活持续时间更长。

The capital gross of foreign capital fund may want to go up high than most RMB fund severalfold, but if foreign capital fund is mixed RMB fund can " together " search a project, can receive than " work alone " better effect.

外资基金的资金总量可能比多数人民币基金要高上几倍，但假如外资基金和人民币基金能&联手&寻找项目，会收到比&单干&更好的效果。

A novel carbon-sulfur nano-composite as cathode for lithium battery was synthesized by heating sublimed sulfur and high surface area activated carbon in certain conditions.

用该复合材料作为正极活性物质所制备的锂蓄电池具有较好的循环性能和高的比容量、比能量。

Arcjet is one of the highlight of electric propulsion investigation and application because of its high thrust density, high ratio of thrust and power, preferable specific impulse, better system successiveness and reliability.

作为电推进的一种方式，电弧加热发动机以较高的推力/功率比、推力密度、中高的比冲、良好的系统继承性和可靠性等特点，成为当前国际研究和应用的热点。

At present, arcjet has been the highlight of investigation and application because of its high thrust density, high ratio of thrust and power, preferable specific impulse, better system successiveness and reliability.

电弧加热发动机以较高的推力/功率比、推力密度、中高的比冲、良好的系统继承性和可靠性等特点，已经成为当前国际研究和应用的热点。

Arcjet is one of the highlight of electric propulsion investigation and application because of its high thrust density, high ratio of thrust and power, preferable specific impulse, better system successiveness and reliability.

电弧加热发动机作为电推进的一种方式，以其较高的推力/功率比、推力密度、中高的比冲、良好的系统继承性和可靠性等特点，逐渐成为当前国际电推进研究和应用的热点。

Arcjet thruster is one of the highlight of electric propulsion investigation and application because of its high thrust density, high ratio of thrust and power, preferable specific impulse, better system successiveness and reliability.

电弧喷射推力器是其中的一种，因其有较高的推力／功率比、推力密度、中高的比冲以及良好的系统继承性和可靠性等特点，成为当前国际上电推进研究和应用的热点之一，在空间任务应用中已经创造了良好的效益。

Corrosion rates of iron in sulfamic acid are smaller than those in H_2SO_4,but larger than those in H_3PO_4 or HCl.

在低浓度(0.5～2.0N)范围内，铁在氨基磺酸溶液中的腐蚀速率仅仅比在硫酸溶液中低，而比在磷酸和盐酸溶液中都要高。

Results show that the basic density, air-dry density, bending strength, modulus of elasticity, and compressive strength parallel to grain of T.'zhongshansha 302' are higher than those of T. distichum, and the oven-dry shrinkage and the air-dry shrinkage in tangential and volume are lower than those of Taxodium distichum, and the differences are all prominent at the 0.05 level.

结果表明：中山杉302木材的基本密度、气干密度、抗弯强度、抗弯弹性模量和顺纹抗压强度的平均值均比落羽杉高，而弦向全干干缩率、体积全干千缩率、弦向气干干缩率、体积气干干缩率均比落羽杉低；其差异都在0.05水平显著。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。