查询词典 coated metal

The complexing properties of compounds 10a, 10b, 11a and 11b toward alkali metal ions were studied by 〓H NMR titration, ESI-MS, UV-Vis spectra, Fluoresence spectra and liquid-liquid extraction. The results show:(1) the 1:1 complexes were formed.(2) The calix-crown 10a, 11a have a higher selectivity for Na〓 ions, whereas 10b, 11b for K〓 ions.(3) The complexing ability toward alkali metal ions was enhanced when the calix-crown have side arm carbonyl.(3) The coordination of alkali metal ions toward phenoxy, carbonyl and crown ethereal oxygens take place by rotation around the carbon-carbon bond of carbonyl and methylene.

六，用〓H NMR滴定，ESI-MS，UV-Vis，Fluorescence，液-液萃取实验研究了10a，10b，11a和11b对金属离子的配位性质，研究结果表明：1）杯芳烃冠醚衍生物同碱金属离子形成了1：1配合物，化合物10a、11a对Na〓具有较高的配位能力，化合物10b、11b对K〓具有较高的配位能力；2）在杯冠醚环的旁边引入带有羰基氧原子的基团作为侧臂参与配位可以加强对碱金属离子的配位能力；3）金属离子分别同苯酚氧，羰基氧，聚氧醚链氧发生了配位，配位过程中侧链基团涉及到了羰基碳与亚甲基碳的碳碳键的旋转过程。

Roast a porcelain hat according to inside hat material different, mainly is divided into Nie chrome the metal alloy roast a porcelain hat, titanium cobalt the metal alloy roast porcelain hat, gold leaf metal alloy to roast porcelain hat and gold deposition to roast a porcelain hat.

烤瓷冠根据内冠材料不同，主要分为镍铬合金烤瓷冠、钛钴合金烤瓷冠、金铂合金烤瓷冠以及金沉积烤瓷冠。

Product Name: ik-415 metal cleaning agents Description: ik-415 metal cleaning agent, is a by the surfactants, additives, anti-rust agent consisting of soluble metal-cleaning agents.

产品名称： ik-415金属洗净剂产品简介： ik-415型金属洗净剂，是一种由表面活性剂、助剂、防锈剂所组成的水溶型金属洗净剂。

The theoretical and experimental studies on metal-carbon-based hydrogen storage materials in recent years are reviewed in this paper, including metal-decorated carbon nanotubes,C60 and transition-metal-ethylene complexes, and so on.

随着计算材料学的发展，利用密度泛函和量子机制第一性原理研究已知材料储氢性能和寻找潜在的新型优良储氢载体已成为当前研究储氢材料的有效方法。

There's also the option of using metal cones, and there are numerous metal-diaphragm dome tweeters on the market, but metal-coned bass/mid units are less common.

也有人选用金属来做盆体，而且市面上也有不少金属膜高音单元，但金属盆体中低音单元却并不常见。

People should just be them fu ckin selves and stop being goth or emo or metal or black metal or death metal or punks or preps or jocks or twats or what the fu ck ever else and just fuckin be cool and have some fu ckin respect for one another.

所有的人只需要做他们自己，别再说什么歌特或者EMO或者金属或者黑金属或者死亡金属或者朋克或者PREPS或者JOCKS或者TWARS或者其他什么别的，就做你想做的然后尊敬一下其他的！

The results indicate that with the increase of target current,the metal volume fraction and the radius of the metal particles of Cr-Cr2O3 cermet films increases,and the metal particles become oblate spheroids.

结果表明：随着靶电流的增加，膜层中金属微粒体积百分比增加，金属微粒的平均半径随之增加，且金属微粒逐渐趋于扁圆形，理论计算结果与实验结果吻合较好。

Folk metal band Skyclad, often regarded as the first folk metal band, also formed in Newcastle after the breakup of Martin Walkyier thrash metal band, Sabbat.

民谣金属乐团&演唱者&，常被公认为是第一个民谣金属乐团，随着马丁·沃基尔的激流金属乐团&魔宴&的解散，&演唱者&也在纽卡斯尔成立。

Mainly producing all kinds of metal stamping products, metal welding products, such as metal office furniture, cages, bird cage, hand pushing shopping cart, wine, bath hardware racks, paper basket, paper rack, CD racks, hangers, and various wire products, steel pipe products.

主要生产各种五金冲压产品，五金焊接产品，如五金办公桌椅、狗笼、鸟笼、手推购物车、酒架、沐浴五金架、文件筐、文件架、CD架、衣架、及各种铁线产品、铁管产品等。

Health 24 - Metal frames in rucksacks, metal farming equipment, fishing rods and metal racquets have been known to attract lightning.

生24-金属架在背囊，金属农具，钓鱼竿和金属racquets已知道，以吸引闪电。

Given the language of section 102(2), the Supreme Court's rejection of substantive review under NEPA seems unjustifiable in principle

按照第102条的规定，最高法院否决《国家环境政策法》所规定的实质性复审在原则上似乎是不正当的。

ObjectiveTo explore the effect of variable hip abduction orthosis on children spastic cerebral palsy.

目的探讨髋关节矫形器在儿童痉挛型脑性瘫痪康复中的作用。