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In order to direct the system start-up, halophilic bacteria culture and acclamation were also studied.

本文还就含海水城市污水处理过程中嗜盐菌的培养与驯化方面给出了可靠的活性污泥系统启动方式。

Key word :wastewater treatment;magnesium ammonium phosphate;chemical precopitation;removal of ammonium and phosphate

向含NH4+和PO43-的废水中添加镁盐,发生的主要化学反应如下

Dimethylhexane-1,6-dimethyleurethane is the key material for preparation of 1,6-hexamethylene diisocyanate by non-phosgene route. Our work mainly focuses on the study of the catalytic performances of metal oxysalts and metal oxides for the ammonolysis of DMC to HDU-M. Experiment effect showed the ammonolysis was omposed by two steps, in which the first step was easier to occur than the second.

中文摘要六亚甲基-1,6-二氨基甲酸甲酯是非光气合成六亚甲基二异氰酸酯的关键原料,本文主要对金属含氧酸盐和金属氧化物这两类用于碳酸二甲酯胺解合成HDU-M 的催化剂进行了初步研究并优化了工艺条件。

By measuring and analyzing the total nitrogen,α-amino nitrogen and component, the effect of high pressure on the autolysis of anchovy, and the effect of salt addition as well as enzyme added on the high pressure hydrolysis were investigated.

以水解液总氮含盆、α-氨基氮及游离氨基酸组成成分等为指标,研究了超高压在鳀鱼自身降解过程中所起的作用,同时讨论了超高压下添加盐、外源酶对超高压作用效果的影响。

The major foods containing benzoates (or additive 211) were cordials, non cola soft drinks, fruit and vegetable juices, sauces and toppings, dairy and fat based desserts, ice confection and some jams.

含安息香酸盐(或添加剂211)的主要食物是兴奋性饮料,非可乐型汽水,水果和蔬菜汁,酱汁和装饰物,奶制品和脂肪类甜品,冰品和一些果酱。

I have two dogs and they just love the Healthy Edibles, and I love them because there are no plastic, salt, sugar or preservatives in them.

我有两只狗,它们都喜欢健康食品,我很喜欢耐龙Nylabone的产品,因为它不含塑料、糖、盐及防腐成分。

Etchants are high consumption and high pollution of the printed circuit board industry; therefore this research uses the etchant for the acid copper chloride amount the high copper content in the printed circuit board industry, using the neutralization for acids and bases to prepare of the copper salt by the acid wasted etching liquid.

中文摘要在印刷电路板业中蚀刻液属於高用量及高污染性质的液体;因此本研究主要使用印刷电路板业中含铜量较高之酸性氯化铜蚀刻液,使用酸碱中和法从酸性蚀刻废液制备出铜盐,以达到废弃物资源化再利用之永续经营。

Results indicated that the cathodic current efficiency of the bath for zinc-iron alloy electroplating was 73%(that for zinc plating was l0.68%), and the throwing power was 100%(that for zinc-plating is 85%).

结果表明:合金镀液的阴极电流效率为73%,深镀能力为100%,合金层中含铁量为0.4%-0.8%;经钝化后,其盐雾试验出现白锈时间为240h(镀锌层为94~144h)。

In consideration of the characteristics of high pressure salt bed cementing of oil and gas wells, high density salt slurry is often used for cementing.

针对高压盐层的油气井固井特点,注水泥时常采用高密度含盐水泥浆。

Its preparing process includes dissolving the salts containing metal in group VIB or VII or their mixture in ammonia water until full dissolving, and adding citric acid to stabilize the solution.

其制备方法为:先用氨水溶解含ⅥB族金属或Ⅷ族金属的盐,或二者混合物,使之完全溶解后,加入柠檬酸以使溶液稳定。该溶液稳定性好,制备过程快速、简便、节能。

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Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来,英国,在此地早期居住的是凯尔特人,已经被征服了三次。

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