boron

boron (tri) fluoride etherate;boron fluoride ethyl ether;

名称 三氟-乙醚络合物;

bending strength and thermal shock resistance were improve by addictivity of Boron nitrid.

在该体系中引入后,复合材料的强度和抗热震性能得到提高。

Azomethine H Spectrophotometric Method for Determining Boron in Humic Fertilizer is described.

本文介绍了采用甲亚胺-H酸分光光度法分析腐植酸类肥料中元素的方法。

Crystalline polypyrene microsheets were electrosynthesized in the medium of boron trifluoride diethyl etherate for the first time.

4.在三氟乙醚介,电聚合芘首次制备出结晶型的聚芘微米片。

Reaction of ferrocenylphenylcarbinol with ethereal solution of boron trifluoride in dichloride methane formed the relevant ferrocenylphenylmethyl carbocation.

二茂铁基苯基甲醇与三氟-乙醚溶液在二氯甲烷中作用,形成二茂铁苯基甲基碳正离子。

The carbothermic method of preparation for titanium diboride with titanium oxide and boron oxide in an arc furnace is studied.

研究了电弧炉碳热还原氧钛和氧制取二钛的方法，制备出相对纯度大于95％的二钛。

The separation conditions of carboboride and boron nitride were established by detecting the dissolution curve of electrolytical residua.

通过测定电解残渣的溶解曲线，确定了碳物与相定量分离的条件；

"Boron: Semimetallic chemical element, chemical symbol B, atomic number 5.

：半金属的学元素，学符号B，原子序数5。

Zhuanmiao boron deposit is a szaibelyite deposit which is located in Liaoning-Jilin rift zone.

砖庙矿为产在辽吉裂谷带的镁石矿床。

Boron carbide can be obtained by means of thermal decomposition of triethylborane, tripropylborane and tributylborane, respectively.

以合成的三乙基、三丙基和三丁基为原料通过热裂解制备纯度较高的碳超硬材料；

Those minim nutritive elements' contents wane obviously ,such as quickly availablephosphor, Kalium Potass, Boron ,etc;

土壤速效性磷、钾、等大量、微量营养元素含量明显亏缺；

"At low applied forces, the hardness of rhenium diboride is equivalent to cubic boron nitride, the second-hardest material known, Kaner said.

在低作用力下，二铼的硬度与立方结构的相等，而是第二硬的材料。

By fuming with sulfuric-phosphoric acid mixture the residual hydrofluoride was then expelled，and boron was finally determined by curcumin spectrophotometry after distillation.

同时，对所拟溶样条件下所得的分析结果是否为全问题进行了进一步探讨，结果证实，所拟溶样条件下的测定结果为全。

An investigation is also made on determining DMDAAC qualitatively by bromophenol blue test and quantitatively by tetraphenyl boron sodium precipitation reac...

用溴酚蓝对DMDAAC进行定性分析，用四苯酸钠及折光率法进行定量分析的方法进行了探讨。

Thus, the boron-bearing rock system and the magnesian rocks are the foundation of the borate deposits, whereas regional metamorphism and migmatitization and tectonism are the necessary conditions.

含岩系、镁容矿岩石是矿形成的物基础，区域变及混合岩作用、构造活动是矿形成的必要条件。

Rare earth metals, such as metallic neodymium and metallic didymium (metallic praseodymium-neodymium), are used for rare earth magnets, mainly neodymium-iron-boron magnet.

稀土金属，如金属钕和金属皮（金属镨，钕） ，用于稀土磁铁，主要钕铁磁铁。

The effect of rare earths on the kinetics of boron-aluminized layer growth of armco iron using pasty method at 890, 920 and 950 ℃ was studied.

采用膏剂法在890，920和950℃对工业纯铁进行稀土铝共渗及铝共渗，考察了稀土在各温度条件下对渗层生长动力学的影响。

The boron deficiency plant appears inter-venial chlorosis, thickening, crisping leaves and increased leaf weight ratio (LWR).

缺使叶重比(LWR)提高和叶片脉间失绿、变厚、变脆。

The Didot Perceval, named after the manuscript\'s former owner, and purportedly a prosification of Robert de Boron\'s sequel to Joseph d\'Arimathie.

迪多珀西法尔，以手稿的前主人来命名，据称是罗伯特描写约瑟夫·达里玛蒂故事的一个结局。