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A chromium free conversion coating at least equivalent in corrosion protective quality to conventional chromate conversion coatings can be formed on metals, particularly cold rolled steel, by a dry-in-place aqueous acidic liquid comprising: a component of anions, each of said anions consisting of at least four fluorine atoms and at least one atom of an element selected from the group consisting of titanium, zirconium, hafnium, silicon, and boron, and, optionally, ionizable hydrogen atoms, and optionally, one or more oxygen atoms; a component of cations of elements selected from the group consisting of cobalt, magnesium, manganese, zinc, nickel, tin, zirconium, iron, and copper; the ratio of the total number of cations of this component to the total number of anions of component being at least 1:5; sufficient free acid to give the composition a pH in the range from 0.5 to 5.0; a component selected from the group consisting of phosphorus-containing inorganic oxyanions and phosphonate anions; and a component selected from the group consisting of water-soluble and water-dispersible organic polymers and polymer-forming resins and, preferably, also including a component selected from the group consisting of tungstate, molybdate, silicotungstate, and silicomolybdate anions.

通过对包含以下成分的含水酸性液体进行干燥，可以在金属上形成无铬的转换涂层，该涂层与普通铬酸盐转换涂层相比，至少在抗腐蚀质量上等效：$_一种阴离子成分，所述各个阴离子包括至少4个氟原子，至少选自钛、锆、铪、硅与硼元素中的1个原子。任选地可离解的氢原子，任选地1个或多个氧原子；$_一种选自钴、镁、锰、锌、镍、锡、锆、铁与铜元素的阳离子成分，上述成分的阳离子总数与成分内的阴离子总数之比至少为1∶5；$_足够的游离酸以使该组合物的pH值在0.5～5.0的范围内；$_一种选自含磷的无机含氧阴离子与膦酸盐阴离子的成分；$一种选自水溶性与水可分散性有机聚合物与聚合物形成的树脂的成分，优选还包括一种选自钨酸盐、钼酸盐、钨硅酸盐与钼硅酸盐阴离子的成分。

I can take them to doctor appointments, scout meetings,dofus kamas or field trips to the aquarium, but I'll never go into the wilderness, skewer a worm on a hook, reel in a fish, and cook it over an open flame on a piece of tin foil.

我可以带他们去看医生，参加童子军集会，或者带他们去参观水族馆，但是我永远也不会进入荒郊野地，在鱼钩上挂上虫饵，钓上一条鱼，然后把鱼用锡纸包起来在明火上烤着吃。

I hadn't smoked pot out of a homemade bong since my eight grade boyfriend made one out of tin foil,a Bic pen,and a two litter bottle of his mother's lemony Pepsi Light.

自从我用我读八年级时的男朋友用锡箔纸，原子笔和一罐柠檬汽车瓶做的自制烟斗抽过最后一次后，我就再也没有抽过大麻了。

The experimental result shows that after reclaiming the tailings with garbage fertilizer, Leucaena leucocephala Dewit. can grow well on the tin-zinc tailings pond while it is restricted in the tailings ponds without any reclamation; the contents of As, Pb and Zn in Leucaena leucocephala Dewit. are not high, only a little above those in normal plants.

试验结果表明：在用垃圾肥对尾砂进行改良之后，银合欢能在锡锌尾砂库上较好地生长，而在未经过任何改良的纯尾砂库上则明显受到抑制；银合欢不同组织中的As、Pb、Zn含量均不高，仅略高於一般植物的背景值。

The old woman obeyed, and after fumbling amongst broken tea-cups and milk-jugs, lidless wooden cotton-boxes, and a miscellaneous litter of rags and crockery, produced a tin snuff-box with a sliding lid; a shabby, dirty looking box enough.

老妇人照办了，她在破碎的茶杯和牛奶壶、没有盖的木制棉花匣、杂七杂八的破布和瓶瓶罐罐之间摸索着，找出了一个铁皮鼻烟盒，盒盖是可以滑动的；这盒子是够破烂肮脏的了。

Tungsten ; tin ; rare metal ; discovery history ; Guangxi ; Gongchengcounty ; Limu

钨锡；钝钽；碱性花岗岩型矿床；发现；恭战栗木

The present invention relates to mercapto ethanol isooctanoate type organic tin compound and its preparation process and application.

本发明涉及异辛酸巯基乙醇酯型有机锡化合物及其制备方法和应用。

During preparation, mercapto ethanol isooctanoate, alkyl or ester tin chloride and organic solvent are first heated and refluxed while adding catalyst; organic layer is then obtained through separating liquid and decompression distilled; and through further steps, the compound is obtained. The synthesis process of the present invention is simple, and has conversion rate higher than 95 %, normal pressure and low reaction temperature, low power consumption and less pollution, and the prepared compound has high reaction activity and low toxicity.

制备时，将异辛酸巯基乙醇酯、烷基或酯基氯化锡和有机溶剂加热回流，同时加入催化剂，然后通过分液，保留有机层，再对有机层进行减压蒸等步骤制得所述化合物；本发明合成工艺简单，转化率大于95％，反应在常压条件下，反应温度低，从而降低了能耗，减少了污染，所制备的化合物具有反应活性高和毒性小的特点，使用安全。

MAN NARRA TIN G: There's a legend of a man who lives beneath the sea.

海底世界有个传说说那里住着一个男人

Nextly, theory and methods on constructing Regular Grids based on Various data sources are researched, and the interpolation algorithm - Smoothing Function interpolation arithmetic of interpolating Regular Grid DEM from Triangulated Irregular Network is improved.

研究了基于各种数据源建立规则格网DEM的理论和方法，详细分析并实现了从不规则三角网TIN到规则格网DEM转换的改进算法——磨光函数内插算法。

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。