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There exits several MDO algorithms. But they are in our opinion either nonefficient or complicated. So we devised an algorithm called Subspace Approximation Optimization . In the SAO algorithm, the whole system is decomposed into one system-level optimization and several disciplinary optimizations so that a large and complicated problem can be divided into several easy-solving sub-problems. The coupling relationships and the coordination among disciplines are presented by equality constraints and these equality constraints are assigned to relevant disciplines. The optimums of design variables in system level optimization are transferred to discipline level optimization. The optimums of design variables in discipline level correspond to the point that is the nearest to the optimums of design variables in system level. If the optimums of design variables in system level are out of feasible region of discipline 1eve1, linear constraints can be built in the system level optimization using the design variable optimums obtained by the discipline level optimization. The system level optimization would improve the design of the whole system with these linear constraints.

目前，国内外已经发展出了多种飞机多学科设计优化算法，本文的重点是针对协同优化算法的不足，提出了子空间近似优化算法(Subspace ApproximatingOptimization，SAO)，SAO算法中，整个系统的优化问题被分解成一个系统级优化和若干学科级优化，而各个学科之间的耦合与权衡关系则被当作等式约束，这些等式约束将被分配到各个学科级优化中去，系统级优化的任务是寻找整个系统的最优解，而学科级优化的目标函数是以系统级优化分配下来的设计点为圆心的超球半径的平方，因此，如果系统级优化分配下来的设计点在学科级优化可行域内，则学科级优化目标函数为0，反之，则学科级优化的最优点是系统级优化当前设计点距离可行域最近的点。

Study result suggest: The change of stock in RFCCU directly affect gasoline content. Gasoline content can be reduced through increasing the equilibrium activity of catalyst, controlling reaction level, increasing recirculating rate of gasoline and stability of gasoline level. Conclusions drawn from experiment is that optimization of operating condition has great effect on lowering olefine content of gasoline which can be reduced from 60% to 50%.Reducing reaction temperature is useful for lowering olefine content of gasoline, when the reaction temperature is raised, thermal cracking rate is higher than catalytic cracking rate, so that olefine content is increased. Raising catalyst-to-oil ratio is good for lowering olefine content. With conversion rate increased, the yield of LPG and coke is raised, the yield of gasoline is increased firstly and then decreased slightly, hydrogen transfer index is increased, so the olefine content is decreased.

研究结果表明：催化裂化装置的原料的变化直接影响到催化汽油的烯烃含量；可以通过优化催化装置的操作条件来降低催化汽油中的烯烃含量，其中通过提高催化剂平衡活性、控制反应深度、增加汽油回炼量、汽油深度稳定可以降低催化汽油烯烃含量，优化工艺条件对降低催化汽油烯烃含量有较大作用，汽油烯烃含量由60％降至50％左右；降低反应温度有利于降低催化汽油的烯烃含量，当反应温度的提高，热裂化反应速度提高的幅度大于催化裂化反应速度提高的幅度，汽油烯烃含量增加；剂油比的提高有利于降低催化汽油的烯烃含量，转化率提高，液化气产率提高，汽油收率先增加后略有下降，焦炭产率增加，氢转移反应指数提高，汽油烯烃含量下降；反应时间对产品分布及汽油烯烃含量有影响，增加提升管反应时间，液化汽、汽油产率提高，干气和焦炭产率增加。

People prefer a strong so that others admire you .not too weak so that people porr you !

如果可能的话，更强一些，宁可强的让人羡慕，也不能弱得让人可怜！

If possible, also, they should be branched or reticulated with other ways of a similar class, so that no part of the town should finally be many minutes' walk from some one of them; and they should be made interesting by a process of planting and decoration, so that in necessarily passing through them, whether in going to or from the park, or to and from business, some substantial recreative advantage may be incidentally gained.

如果可能，它们还应该在一个简单明确的枝状或网状系统中，这样从城市中的任何一部分都不会花费很长时间来到达另外一处；并且也应该通过种植和装饰的来是其充满趣味，这样，在必要的穿行中，无论是去公园还是从公园返回，或者往返工作之间，都要使人顺便获得实实在在的休闲。

Rolfe: So much that I even thought of sending you a telegram, just so that I'd be able to deliver it here.

罗：想得我甚至要给你发个电报。这样我就能送它到这儿。

Rough surface will cause diffuse reflectance to light so that color added plant some white components so that the drop in mingdu, saturability, to give the overall yellow, pale colors.

粗糙的表面会对光产生漫反射，这样在颜色中增添厂一些白色成分，使得明度升高，饱和度下降，给人以整体泛黄、色彩变淡的感觉。

If a child crying is not dramatic, duration is not long, can give the child to soothe, shake the child, reduce the environmental noise can be an appropriate use of dimethyl silicone oil agents, dimethyl silicone oil is a non-absorbable drug, by changing the bubble surface tension, so that bubble fusion or diffusion, promote gas emissions, no side effects on the human body; such as severe abdominal pain episodes a long time, you can use spasmolytic agents such as belladonna preparations ,654-2, atropine, etc., these agents have a certain side effects such as face flushing, dry mouth dry skin, rapid heartbeat and so on, so the best use under the guidance of the doctors.

如小孩哭闹不剧烈，持续时间不长，可以给孩子以抚慰，摇动孩子，减低环境噪音，可适当服用二甲基硅油制剂，二甲基硅油是一种非吸收性药物，通过改变气泡表面张力，使气泡融合或弥散，促进气体排出，对人体无副作用；如腹痛剧烈发作时间长，可使用解痉剂如颠茄制剂、654-2、阿托品等，这类制剂都有一定副作用如面色潮红、口干皮肤干燥、心跳加快等，所以最好在医生指导下使用。

It showed that, compared with other catalysts, SO(superscript 2- subscript 4)/TiO2-ZrO2 was more active to bring about more than 95% conversion rate of stillingia oil under the transesterification conditions of 150℃, molar ratio of methanol to oil 12:1, catalyst amount 5% and reaction time 6h.

结果表明，催化剂SO(上标 2-下标 4)/TiO2-ZrO2表现出了较高的催化活性，SO(上标 2-下标 4)/TiO2-ZrO2催化的最佳酯交换反应条件为：反应温度150℃，醇油摩尔比12：1，催化剂用量5%，反应时间6h，此时乌桕籽油的醋化率超过95%，且催化剂重复和再生使用效果良好。

Teach with compassion, O brahman, the Dhamma of seclusion so that I may know — so that I, unafflicted as space, may live right here, independent, at peace.

&你怜悯我，教给我吧，梵天啊！我懂得了这个寂静法门，就能像空气一样无所阻碍，在这世上平静地，无拘无束地游荡。&

So the real function of education is not only to help you uncondition yourself, but also to understand this whole process of living from day to day so that you can grow in freedom and create a new world - a world that must be totally different from the present one.

因此，教育的真正意义不只是帮助你不去限制自己，同时也是去了解日常生活的整个过程，然后你就可以在自由中成长并创造新世界，一个必须和现今世界完全不同的世界。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！