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A new polysilicate ferric aluminum was prepared by using water glass,ferric sulfate and aluminum sulfate as raw materials.The conditions of preparing PSFA were optimized: the polymerization degree of silicic acid is 0.5; the molar ratio of Fe3+ and Al3+ to SiO2 is 1: 1; the molar ratio of Fe3+ to Al3+ is 1: 1;and the degree of hydrolysis is 0.5;while the influence of the aging time on the coagulation property of PSFA is not obvious.

用水玻璃、硫酸铁和硫酸铝制取聚硅酸铁铝混凝剂，确定了制备PSFA混凝剂的优化条件：硅酸聚合度η为0.5，Fe3+及Al3+与SiO2的摩尔比为1： 1， Fe3+与Al3+的摩尔比为1： 1，水解度B*为0.5，而熟化时间对PSFA混凝剂的混凝性能影响不明显。

The operational parameters of this process are very flexible. The optimum postcombustion degree is 25～45% corresponding to the prereduction degree of 100～50%. The energy efficiency of the process is as high as 65%.

该工艺操作灵活，顶还原度50～100％对应的优化组合的二次燃烧率为45～25％，煤耗相应为725～683kg／tFe，低于其它工艺的煤耗，系统自身能量利用率可达65％以上，高于其它工艺流程。

The feature of the shaft furnace-iron bath smelter charging carbon-bearing pellets is that partial off-gas of shaft furnace is mixed with gas from smelter and then put into shaft for preheating and pre-reduction. The optimum operational parameter is at the point of prereduction degree of 52% and post-combustion degree of 32% where the coal consumption is 750kg/tone-hot metal and oxygen consumption is 420Nm〓/tone-hot metal.(5) The systematic simulation of rotary hearth furnace-iron bath smeter is firstly formulated.

4本文建立的含碳球团竖炉—铁浴工艺流程模型的特点之一是竖炉炉顶出口煤气的一部分与铁浴煤气混合后，重新进入竖炉，本文报道的对系统部分出口物流返回反应器的非序贯式流程进行的系统模拟，为今后类似问题的模拟提供了参考，本工艺的最低消耗点的操作条件是：预还原度52％，二次燃烧率32％，这时的最低煤耗为750kg／tFe（中挥发份煤VM=19％），氧耗约420Nm〓／tFe，对应于预还原度30～70％的优化组合的二次燃烧率为32～13％。

The method comprises heating up the lactic acid solution to gasify at 150-200 degree C, mixing the obtained mixed vapour of lactic acid and water with the carrier gas, entering into gas-solid catalytic reactor to get the reaction product gas by the action of a modified Y zeolite molecular sieve catalytic agent and dewatering after heating up the mixed gas to 200-450 degree C, obtaining the propenoic acid solution through gas-liquid dissociation after cooling the reaction product gas, obtaining coarse propenoic acid products form the propenoic acid solution by gas stripping, azeotropic distillation, extraction and rectification in turns.

其特征在于将乳酸水溶液加热至150～200℃气化得到的乳酸-水混合蒸气与载气混合，将混合后的气体继续加热到200～450℃后进入气-固相催化反应器中经改性Y沸石分子筛催化剂作用脱水得反应产物气体，反应产物气体冷却后经气液分离得到丙烯酸溶液，丙烯酸溶液再依次经过气提、共沸蒸馏或萃取、精馏得到粗丙烯酸产品。

It is the organic conformation of four levels of the degree of regional economies, of protection and restoration of regional ecology, of relativeness between regional economies and ecology, and of diffusion of pollution in regions that are the starting point and pathway to construct comprehensive evaluation system of the degree of harmony between regional economies and eco

构造区域经济与生态发展和谐度的综合评判体系，应当以区域经济发展度、区域生态保护与修复度、区域经济与生态关联度、周边区域生态污染扩散度四个层面的有机整合作为切入点和推进路径。区域经济与生态发展和谐度并非一成不变，而是随时随地都在运动变化着的。

It is the organic conformation of four levels of the degree of regional economies, of protection and restoration of regional ecology, of relativeness between regional economies and ecology, and of diffusion of pollution in regions that are the starting point and pathway to construct comprehensive evaluation system of the degree of harmony between regional economies and economy.

经济与生态和谐成长是当今世界不懈追求的永恒主题，是一个由一系列经济链与生态链以及经济与生态链环所构成的相互作用、相互影响、相互联动的庞大系统。构造区域经济与生态成长和谐度的综合评判体系，应当以区域经济成长度、区域生态保护与修复度、区域经济与生态关联度、周边区域生态污染扩散度四个层面的有机整合作为切入点和推动路径。

It is the organic conformation of four levels of the degree of regional economies, of protection and restoration of regional ecology, of relativeness between regional economies and ecology, and of diffusion of pollution in regions that are the starting point and pathway to construct comprehensive evaluation system of the degree of harmony between regional economies and economy.

构造区域经济与生态发展和谐度的综合评判体系，应该以区域经济发展度、区域生态保护与修复度、区域经济与生态关联度、周边区域生态污染扩散度四个层面的有机整合作为切入点和推进路径。

It is the organic conformation of four levels of the degree of regional economies, of protection and restoration of regional ecology, of relativeness between regional economies and ecology, and of diffusion of pollution in regions that are the starting point and pathway to construct comprehensive evaluation system of the degree of harmony between regional economies and economy.

构造区域经济和生态发展和谐度的综合评判体系，应当以区域经济发展度、区域生态保护和修复度、区域经济和生态关联度、周边区域生态污染扩散度四个层面的有机整合作为切入点和推进路径。

It is the organic conformation of four levels of the degree of regional economies, of protection and restoration of regional ecology, of relativeness between regional economies and ecology, and of diffusion of pollution in regions that are the starting point and pathway to construct comprehensive evaluation system of the degree of harmony between regional economies and economy.

构造区域经济与生态发展和谐度的综合评判体系，应当以区域经济发展度、区域生态保护与修复度、区域经济与生态关联度、周边区域生态污染扩散度四个层面的有机整合作为切入点和推进路径。

It is the organic conformation of four levels of the degree of regional economies, of protection and restoration of regional ecology, of relativeness between regional economies and ecology, and of diffusion of pollution in regions that are the starting point and pathway to construct comprehensive evaluation system of the degree of harmony between regional economies and economy.

构造地域经济与生态生长调和度的综合评判体系，应当以地域经济生长度、地域生态掩护与修复度、地域经济与生态关联度、周边地域生态污染扩散度四个层面的有机整相助为切入点和推进路径。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。