查询词典 tin

In the contaminated lard sample, 6 organic compounds have been thus identified to be the raw materials or byproducts in the production of organic tin compounds. Based on the identified contaminants, it can be postulated that the chemical structure of the organic tin compound is dibutyltin-bis-(2-isooctyl thioacetate). The method is simple and precise, and has not been reported in the local literature.Keywords Organic tin compound, Lard, SPME－GC－MS

经过摸索研究，采用固相微萃取方法富集挥发性杂质，直接注入色谱中，经色谱分离，质谱测定，确定了杂质的结构，由杂质成分推断生产有机锡所用的原料，然后判断合成路线，最后确定有机锡的结构，从有毒猪油中鉴定出2－巯基醋酸异辛酯、双（2－醋酸异辛酯）二硫、双醋酸异辛酯硫醚等6种与有机锡有关的杂质，并与相应的有机锡工业品对照，发现工业品中也含有这些杂质，与其合成过程的原料及副产物相符，从而确定有机锡化合物为二硫代醋酸异辛酯二丁基锡。

The differences of the micro structure and properities of the bulk sinters, between the fabrication methed of powder metallurgy and reactive synthesis for silver tin oxide composite, are studied in prensent thesis. With the increase of the tin oxide content in silver matix, the electric conductivity of the composite tended to decreace. While in the same tin oxide content, the electric conductivty of the composite fabricated by reactive synthesisis better than that by powder metallurgy. One of the reasons is that the regular net structure existing in former composite.

研究了两种方法即粉末冶金法和反应合成法制备的银氧化锡复合材料烧结坯在组织上的区别和性能上的差异，两种方法制备的银氧化锡复合材料，随着氧化锡含量的升高，材料导电性均呈下降趋势，而相同成分的材料，反应合成法制备的银氧化锡复合材料的烧结坯的导电性要优于粉末冶金法，有规则的网络状组织结构是反应合成法制备的烧结坯导电性好的原因之一。

Imports of copper materials such as: oxygen-free copper, copper, copper, Sambo Copper, brass, bronze, phosphor copper, beryllium copper, tungsten copper, cups with disabilities copper, tin bronze, phosphor copper, tin, tungsten copper, tin zinc and copper, beryllium bronze, zirconium bronze, aluminum bronze, chromium zirconium copper, copper alloy hardware Gold, silver copper, Nickel Silver, copper, copper rod, copper strip ..., titanium alloy, ductile iron demand ....

进口铜料如：无氧铜，紫铜，纯铜，三宝红铜，黄铜，青铜，磷铜，铍铜，钨铜，杯士铜，锡青铜，磷铜，锡钨铜，锡锌铜，铍青铜，锆青铜，铝青铜，铬锆铜，硬铜合金，含银纯铜，洋白铜，铜板，铜棒，铜带。。。，钛合金，球墨铸铁。。。。

Economic globalization has expanded the international community to use the scope and tin resources, intensified the world's tin ore resources for the countries in the world a better understanding of tin ore resources to the important position and role.

有高手帮我翻译一下我的论文摘要，无限感激！谢谢摘要：经济全球化扩大了国际社会利用锡资源的范围和方式，同时加剧了世界对锡矿资源的争夺，世界各国进一步认识到了锡矿资源的重要地位和作用。

The formation of tin dioxide nanotubes on tin substrates anodizing in oxalic acid electrolytes and annealing in the air was investigated. Under optimized electrolyte, oxidation and anneal conditions, nanotubes of tin dioxide were fabricated.

单质锡箔片在草酸溶液中利用电化学阳极氧化合成出前聚体，并将前聚体通过加热氧化制备出具有纳米级孔道的二氧化锡材料。

Monophenyltin trichloride reacts withdicarbonyl dicyclopentadienyl titanium immediately at room temperature, but no ti-tanium-tin complex produced, and the products were diphenyltin dichloride〓 and tin or stannous Chloride. When diaryltin dihalides were used, only the chlorides and bromides reacted with 〓form the complexes containing titaninm-tin bond,〓. but the corresponding iodide complex was not found. This reaction is Sensitive totemperature,when the temperature is belw 10℃,the reaction hardly takes place,but as the temperature is above 25℃,more 〓 will be found and the reactionbecome more complex.

Ph-SnC〓室温下即可与Cp〓迅速反应，但不生成含钛一锡链的化合物，而是生成Ph〓和Sn或Sn〓二芳基二卤化锡化物中，只有氯化物和溴化物才能和〓反应生成含钛〓锡键的化合物〓相应的碘化物则不行，而且反应对温度比较敏感，低于10℃，反应几乎不能进行，而高于25〓，则会生成更多的〓，在回流条件下得不到含钛〓锡键的化合物，只能得到分解产物，〓和Sn或〓。

Results showes that the suitable quantity tin can not appeared crystal boundary, and RE phase segregation reduced the tendency of intergranuiar corrosion, current efficiency of anode increased recessive quantity tin appearat crystal boundary with Sn phase, and can not improve the performance of aluminum anode. aluminum alloy, saciiiicial anode, electrochemistry performance, microstructure, tin

本文分析锡含量不同的铝基牺牲阳极的金相结构和电化学性能，阐述合金元素锡对晶粒尺寸、第二相数量、主要第二相组成、电化学性能的影响及铝阳极组织与性能的关系，以及电流效率损失的原因。1实验1.1铝合金熔炼 1号、2号和3号铝合金分别为m一5Zn一0.05In—lMg一0.3RE、舢一5Zn—O.05In一0.1sn一1Mg一0.3RE和m一5Z

Lin Tong Line, tin copper, brass line, red copper, stainless steel line, nickel spring steel wire, galvanized lines, aluminum, white copper, tin wire, tin, enameled wire, pneumatic components, Electromagnetic valve, cylinder, fast joints, PU trachea.

磷铜线、镀锡铜线、黄铜线、红铜线、不锈钢线、镀镍弹簧钢线、镀锌线、铝线，白铜线、锡丝、锡条、漆包线、气动元件、电磁阀、气缸、快速接头、PU气管。

052 Describes and claims a body of polycrystalline dielectric ceramic material having a lead zirconate--lead titanate--lead stannate composition falling within the area A B C E F of the triaxial diagram 1d of the drawings accompanying this specification and containing at least one substitutional additive ingredient selected from the group consisting of elements having respective ionic radii sufficiently close to the ionic radius of one of the elements lead, tin, titanium, zirconium and oxygen to permit of substitution, and a valence state differing from that of said one element by less than three units, the aggregate quantity of additive ingredient amounting to from 0.1 to 5 percent of the replaced ion on an atom basis, each additive ingredient present in said material being in ionic form and substituting for a finite percentage of the ions of a particular one of the elements lead, tin, titanium, zirconium and oxygen with respect to which it conforms with regard to ionic radius and valence state, said additive ingredient replacing a quantity of said elements having in the aggregate an equal number of valence units.

参考译文：第 1012052 号专利说明书介绍一种含有锆酸铅，钛酸铅，锡酸铅的多晶陶瓷介质材料，其组成在说明书附图 ld 三元相图中处于 A B C E F 区域内，该组成至少还含有一种置换添加物，这种添加物从一组离子半径分别接近于铅，锡，钛，锆，氧的元素中选出，以利于互相置换，而与上述一种元素化合价之差应小于三价。该添加物的总量为被置换离子的 0.1%~5%克原子。上述材料中的每种添加物是以离子形式存在的，它以一定的百分数置换铅，锡，钛，锆，氧中的某一元素的离子。添加物在离子半径和价数上必须类似于上述任一元素，并且置换添加物的量与被置换的元素在总体上具有相等的化合价数。本句由两个简单句构成，一个主句，另一个是定语从句。

The company mainly produces tin plated copper, tin plated copper wire, bare copper wire, bare copper wire and various copper Canada, all export products, quality assurance, price concessions, the quality of your service is my purpose plant!

本公司主要生产镀锡铜线、镀锡铜绞线、裸铜线、裸铜绞线及各种铜线加等，产品全部外销，质量保证，价格优惠，优质为你服务是我厂宗旨！

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？