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According to the practical needs of chrome-free tannage, titanium is abundant in nature, easily obtainable and ecologically friendly, titanium tannage can produce a leather with similar performance to chrome-tanned leather, so the research of titanium tannage to alternative chrome tannage was established as the research direction of this thesis. The preparation of novel titanium tanning agent, factors affecting titanium tannage, titannium tannage mechanism and titanium combining tannage were studied.

本文从对非铬鞣体系的实用性要求出发,在对几种常用金属鞣剂的鞣性和鞣革综合性能的分析基础上,并结合它们的资源和毒性等方面的因素,提出了钛鞣是理想的铬鞣的替代鞣法的观点,确定了以资源丰富、无毒和鞣革综合性能好的钛代替铬的研究方向,研究了新型钛鞣剂的制备方法、影响钛鞣的因素,并对钛鞣机理和钛结合鞣法等方面进行了深入的研究。

The experimental results show that the adsorption of benzoic acid in trinal system by crosslinked chitosan resin, the addition of salts serve as salting-out, the apparent adsorption rate constantk(subscript t is increased according with the concentration of external-added salts increased.

实验结果表明,交联壳聚糖树脂在三元体系中吸附苯甲酸,外加析作用,使得其表观速率常数k(下标 t随着外加浓度的增大而增大。

From the tests,we have obtained some structural variant features related with salt resistance and demonstrated the successful introduction of Rhizophora apicularta DNA into tomato.This thesis contains two parts. In the first part,the morphological and anatomical structures of the leaves were investigated. As to the morphology,some difference between control and transformed tomato were found. The leaf dimensions of the transformed tomato with unextended leaves were smaller than that of control. These structure changes should help to decrease the evaporation of water effectively and release the physiological drought resulted from saline.

本实验分两部分:第一部分、对转化番茄的形态及细胞显微结构进行观察与分析,实验表明转化番茄形态与对照相比有明显的变化,其叶面积变小,叶形收拢,这种结构可有效地减少水分的蒸发,缓解由胁产生的生理干旱;组织解剖结构结果显示,耐番茄在细胞结构上发生了明显的变异:其气孔器倾向下陷,表皮毛增多,叶脉微管组织不发达,微管束周围出现增多的贮水细胞,叶缘及其它部位表面分化出大型的多细胞分泌型结构,这些结构与转化番茄后代较强的耐能力有关。

This can be accomplished by learning to enjoy the flavors of unsalted foods, adding little or no salt during cooking or at the table, flavoring foods with herbs or spices, and limiting intake of foods that are obviously salty or contain significant amounts of hidden salt.

选择一个温和的饮食中和钠,这可以通过学习欣赏口味的新鲜食品,添加很少或根本没有在烹调或在餐桌上,调味食品,中药或香料,并限制摄取的食物很明显太咸或含有大量的隐性

Kerneos is the world leader in the research, production and valorization of calcium aluminate specialty mineral binders and reactants to the dry mix mortar industry.

林栋经理:凯诺斯铝酸公司在铝酸的科研和生产中,以及把铝酸作为特种矿物胶凝材料和添加剂的干粉砂浆领域,都处于世界领导地位。

The salinity reduction on the leeward side of the round mound reached 50%, and was 60% for the leeward side of the slender mound. Therefore, salt reduction showed better performance compared with wind velocity reduction. The salinity observed at the wind gap decreased with the increasing of distance from wind gap, but between round and slender mounds, no significant difference was detected.

在减效果方面,圆形与细长形土堤背风面平均减效果达50%至60%,两者之减效果皆优於减风效果;再者,圆形与细长形土堤中间之风口处,分量随距离增加而递减,然而差异并不明显。

A salt of a xanthic acid, especially a simple xanthic acid salt, as of ''.

黄原酸一种黄原酸的,尤指单一的黄原酸

A salt of a xanthic acid, especially a simple xanthic ''.

黄原酸一种黄原酸的,尤指单一的黄原酸

A salt of a xanthic acid,especially a simple xanthic acid salt,as of sodium or potassium,used as a flotation collector for copper, silver ,and gold.

黄原酸一种黄原酸的,尤指单一的黄原酸。如黄原酸钠或黄原酸钾,是黄原酸的化合物之一,用作铜、银和金的飘浮物集中剂

Chlorophyll contents and xanthophyll cycle pool calculated from reflectance were closely related with cucumber tolerance to salt stress, and reflectance characteristics could be used as index to evaluate cucumber cultivar tolerance to salt stress.

利用光谱反射指标得出的叶绿素含量、叶黄素循环库的大小与黄瓜的害程度及不同品种的耐程度有密切关系,反射光谱特性可以用来作为筛选黄瓜耐的生理指标。

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推荐网络例句

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?