工业化的

In this paper several methods including acylamide dehydration, metal cyanide replacement, etherification and isoxazole method for synthesis of 3,3-diethoxyethylcyanide were reviewed.

综述了3，3-二乙氧基丙腈的合成方法，包括酰胺脱水、金属氰化物取代、醚化和异恶唑法，用于工业化生产较为满意的合成路线是以1，1，3，3-四乙氧基丙烷为原料的异恶唑法。

The traditional separation and purification process of levulinic acid was consisted of solvent extraction and high vaccumn distillation, which was low in product recovery, high in energy consumption and complex in process operation.

传统的乙酰丙酸分离提取工艺以有机溶剂萃取和真空精馏为核心，乙酰丙酸的回收率低、能耗高、工艺复杂，成了制约工业化生产的主要因素。

Theimage he presents is of China sucking up the world's resources likesome mighty vacuum cleaner, in a vain attempt to feed itself, andindustrialise.

他所要描绘的画面就是中国为了养活自己和进行工业化进程这两个徒劳的尝试，就像某种巨大的真空吸尘器一样吸走了世界资源

Russia and Ukraine still have a longway to go to reach Western European standards despite the impressive growth incrude steel production in recent years.

在传统的工业化国家的毛钢需求与生产长期处于低水平之后，该部门受益于过去若干年亚洲国家的强劲增长。

The experimental results are as follows:(1) TBP was suitable to monobasic carboxylic acid solutes , but was not suitable to polybasic carboxylic acid solutes (such as succinic acid and citric acid).

首次采用BP神经网络分析方法预测了不同操作条件下的络合萃取分配系数，最终获得有工业化应用价值的络合萃取剂以及络合萃取技术处理有机羧酸稀溶液的工艺条件。

Dimethylnaphthalene (2,6-DMN) is a potentially useful raw material for production of polyethylene naphthalate, polybutylene naphalate and liquid crystalline polymers with superior properties. How to industrialize the process of producing 2,6-DMN is getting more and more studied in the world recently.

2，6-二甲基萘(2，6-DMN)是合成新型聚酯树脂聚萘二甲酸乙二醇酯和聚萘二甲酸丁二醇酯以及液晶高分子聚合物的重要原料，所以将2，6-DMN的生产工业化最近几年成为国内外研究的重点。

A'trade-off'between overprosperity and overrecession, therefore, is rooted in rush expansion and contraction of investment.

在前面两层分析的基础上，第三层集中讨论从强周期波动向常规波动转变的途径，指出如何从政策调整、工业化发展战备转变及经济运行和调节机制转换来实现；国民经济持续、稳定和协调的增长。

In the early 1950's,historians who studied preindustrial Europe

1800年这一时期的欧洲）的史学家，首次以众多的人数，开始调查前工业化时代欧洲人

In 2007 an international team of researchers using satellite photographs and other modern techniques concluded that Angkor had been the largest preindustrial city in the world with an urban sprawl of 1,150 square miles.

2007年，一个世界性的研究小组利用卫星照片和其它现代技术得出了这一结论：吴哥城市扩张达1150公里，它已成为世界上最大的工业化前的城市。

The method is as follows: firstly, premixture is prepared through fusion and composition of the polyvinyl alcohol and the auxiliary agent; secondly, the premixture is fused and mixed with the low density polyethylene and the compatilizer on a double-screw extruder, and the polyvinyl composite material with the moisture absorption function is prepared.

本发明所采用的复合方法具有简便、环保、成本低廉、易于工业化生产等优点；制得聚乙烯基吸湿功能复合材料，具有吸湿功能，可用于制备薄膜，并使薄膜具有较好的吸湿功能，同时保持良好的力学性能。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。