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Linear solvation energy relation was firstly introduced in the paper, and the method and step of gaining the special parameters of solvent and solute were introduced in detail, and these special parameters were used to selection and optimization of extractive agent in extractive distillation. The model of predicting activity coefficient at infinite dilution was established by linear solvation energy relation. By the above theory, several candidate solvents were selected to separate C5 fraction, and by experiment of vapor-liquid phase equilibrium at atmosphere pressure, the mixture of N-methyl-pyrrolidone including 4% water was used extractive agent of separating C5 fraction. Then binary vapor-liquid phase equilibrium of the some compound in C5 fraction and N-methyl-pyrolidone were determined at atmosphere pressure and correlated by NRTL equation. Isoprene being objective compound, experiments were operated in the laboratory-scale column; the processes were simulated by RadFrac model in ASPEN PLUS. And by the combination of experiment and simulation, the new process of separation of C5 was established.

本文首先对线性溶剂化能关系进行了分析介绍，也介绍了采用溶剂化能关系得到溶质溶剂特性参数的方法步骤，并将这些参数用于萃取精馏萃取剂的选择与优化；也通过线性溶剂化能关系式建立无限稀释活度系数预测模型，取得了一定的预测精度；将通过上述方法初选的溶剂进行了常压汽液平衡的测定研究，通过实验研究选定含水4%的N-甲基吡咯烷酮溶液做为C5分离的萃取剂，测定了大量N-甲基吡咯烷酮与C5组分的二元平衡数据，并进行关联计算；以异戊二烯为目标产物在实验室规模的精馏塔内进行了C5分离的实验研究，取得大量塔内数据；通过选用合适的热力学模型，采用ASPEN中RadFrac模块对分离过程进行模拟研究，通过实验与模拟相结合，建立了C5分离的新工艺，为将来的工业化打下了坚实的基础。

This reporter saw Chengdu - Kuala Lumpur, the minimum fare concessionary fares for 217 yuan, plus 131 yuan airport taxes, all for 348 yuan.

记者看到，成都——吉隆坡的优惠票价最低票价217元，加上131元机场税，全部为348元。

Objective: To explore the efficacy of internal ligation plus condensate for the treatment of mixed hemorrhoids.

目的：探讨内扎外凝术治疗混合痔的临床疗效。

I tried using two for… loops to reach the selected pixels, but it was much slower than using one for… loop plus a conditional if… statement

我试着用两个。。。循环到达选定的像素，但它比使用一个循环的。。。如果加上一个条件。。。语句慢

"We have the same value plus half the upside, with no conditionality."

我们获得了相同价值，外加一半的上行机会，而且没有条件限制。

Many nation call"great occasion of nation stanza" or"National Day", have some a nation call"independence day" or"independence stanza", also have of call"republican day","republic day","revolution day","liberation day","nation renew stanza","constitution day"...etc., also have direct with country plus "day" of, like"Australia day","Pakistan day", have of with king of birthday or mount the throne a day for National Day, such as meet a king to substitute, great occasion of nation of concrete the date also immediately replace.

许多国家叫"国庆节"或"国庆日"，还有一些国家叫"独立日"或"独立节"，也有的叫"共和日"、"共和国日"、"革命日"、"解放日"、"国家复兴节"、"宪法日"等，还有直接以国名加上"日"的，如"澳大利亚日"、"巴基斯坦日"，有的则以国王的生日或登基日为国庆日，如遇国王更替，国庆的具体日期也随之更换。

North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776

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This is definitely a plus so you always have access to continuous group coverage and are never left by the wayside without the proper insurance.

这绝对是一个让你永远得到加连续报道组，并留下了永不落幕的正当保险。

Command economy; controlled economy; directed economy An economy in which a significant amount of end results is due to the deliberate decision of government bodies rather than to consumer choice plus forces of supply and demand.

管制经济；控制经济；指令经济指一国经济中相当大部分的最终产品的生产是由政府机构的主观决策决定的，而不是来自消费者的抉择和供求的力量。

After all napoleon had said to him , after those outbursts of wrath , and after the last frigidly uttered words , i will not detain you , general ; you shall receive my letter , balashov felt certain that napoleon would not care to see him again , would avoid indeed seeing again the envoy who had been treated by him with contumely , and had been the eyewitness of his undignified outburst of fury .

在拿破仑对他说了那一切之后，在那一阵愤怒的发泄并在最后冷冷地说了如下几句话之后：" je ne vous retiens plus ， gnral ， vous recevrez ma lettre "我不多耽搁您了，将军，您会接到我给您们皇帝的回信译者，巴拉瑟夫相信，拿破仑不仅不愿再看见他，而且还会尽力回避他一个受侮辱的使者，更主要的是，他是拿破仑有失体面的冲动行为的见证人。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。