2.bending strength and thermal shock resistance were improve by addictivity of Boron nitrid.
在该体系中引入氮化后,复合材料的强度和抗热震性能得到提高。
3.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。
4.Crystalline polypyrene microsheets were electrosynthesized in the medium of boron trifluoride diethyl etherate for the first time.
4.在三氟化乙醚介,电聚合芘首次制备出结晶型的聚芘微米片。
5.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化-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。
6.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化钛和氧化制取二化钛的方法，制备出相对纯度大于95％的二化钛。
7.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，确定了碳化物与氮化相定量分离的条件；
8."Boron: Semimetallic chemical element, chemical symbol B, atomic number 5.
：半金属的化学元素，化学符号B，原子序数5。
9.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矿床。
10.Boron carbide can be obtained by means of thermal decomposition of triethylborane, tripropylborane and tributylborane, respectively.
12."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，二化铼的硬度与立方结构的氮化相等，而氮化是第二硬的材料。
13.By fuming with sulfuric-phosphoric acid mixture the residual hydrofluoride was then expelled，and boron was finally determined by curcumin spectrophotometry after distillation.
14.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。
15.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、容矿岩是矿形成的物基础，区域变及混合岩化作用、构造活动是矿形成的必要条件。
16.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。
17.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.
18.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。
19.The Didot Perceval, named after the manuscript\'s former owner, and purportedly a prosification of Robert de Boron\'s sequel to Joseph d\'Arimathie.
;
-乙醚络合物;
,电聚合芘首次制备出结晶型的聚芘微米片。
矿床。
