α-Bromoesters can react with diselenides by metallic tin in THF to give α-selnoesters in moderate togood yields.
本文报道在四氢呋喃中通过金属锡促进α-溴代酯与二硒醚反应生成α-硒代酯,反应条件温和,产率良好。
Article considered that the prospect of tin polymetallic deposits was optimistic in Northern Guangxi through collecting information and analyzing the results of geological survey items, prospect areas were divided into 2 areas (Jiuwan mountain, Yuecheng mountain) and 3 zones (Danchi, Guanyinge, Huashan-Guposhan), the exploration should focus on the 3 zones.
文章通过对前人资料的收集整理 ,结合大调查项目的找矿成果和信息分析 ,认为桂北地区锡多金属找矿前景乐观 ,远景区可划分为二区 (九万大山、越城岭 )三带 (丹池、观音阁、花山—姑婆山 ) ,找矿重点应放在 3条成矿带上。
Nine trace impurities in high-purity metal tin were determined by inductively coupled plasma atomic emission spectrometry.
采用电感耦合等离子体发射光谱法测定高纯金属锡中9种痕量元素。
Deposition of Tin as a Driving Metal and Its Effect on Me-chanical Plating of Zinc
机械镀锌中先导金属锡的沉积与作用
the transformation of ordinary white tin into powdery gray tin a very cold temperatures.
在极冷的气候下,普通白色金属锡转变为粉状灰锡。
A thin sheet of metal, especially of tin.
锡铁片薄金属块,尤指锡
bimetal strip from tin-aluminium alloy
高锡铝合金双金属带
Tin,iron, silver and gold are metals.
锡、铁、银和金都是金属。
Metallic coatings--Electroplated coatings of tin-nickel alloys
GB/T17462-1998金属覆盖层锡--镍合金电镀层
Metallic coatings--Electroplated coatings of tin-lead alloys
GB/T17461-1998金属覆盖层锡--铅合金电镀层
To whiten(a metal)by soaking in acid or by coating with tin.
在…上镀锡把(金属)浸在酸中或镀锡,使之变白
Geological Characteristics and Exploration Potential of the Xitian W-Sn Polymetallic deposit,Hunan Province
湖南锡田钨锡多金属矿床地质特征及找矿方向
Flotation Research on Recovery of Stannum from Tailing of Cassiterite-polymetallic Sulfide Ore
从锡石-多金属硫化矿尾矿中回收锡的浮选研究
Any of various alloys of copper and tin in various proportions, sometimes with traces of other metals.
青铜,铜锡合金一种不同比例的铜锡合金,有时加入微量的其它金属
Metallic coatings-Electroplated coatings of tin
GB/T12599-1990金属覆盖层锡电镀层
jewelers' putty
磨擦玻璃[金属]用的锡 [铅] 粉
One who works white metal.
锡匠,银匠加工白金属的人
Plant Practice of Comprehensive Recovering Indium from Tin System
从锡系统综合回收金属铟的生产实践
Study on Process Mineralogical in the Sn Polymetallic Deposit in Qinghai
青海某锡多金属矿的工艺矿物学研究
Any of various alloys of mercury with other metals, as with tin or silver.
汞齐,汞合金各种汞和其它金属,如锡或银的合金
Wuxi Jin Li De, with two subordinate companies: Wuxi Jin Li De Metal Products Co.
无锡《金丽得》下设无锡金丽得金属制品有限公司、锡市西漳金丽得特种液剂厂。
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