boron

The sample pretreatment method can meet the requirement of boron isotopic determination by thermal ionization mass spectrometry without any isotopic fractionation of boron. The precision for boron isotopic determination is better than 0.05% RSD.

采用该方法从岩石样品中提取、分离出来的硼能满足硼同位素质谱法测定的需要，不产生硼同位素分馏，硼同位素测定精度大多优于0.05%。

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Calmon has quoted ion exchange costs of $ 0.12-0 . 30 / 1000 gal for boron treatment.

卡尔蒙提出的离子交换树脂处理硼的费用为0.12 ― 0.30美元/千加仑.

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Especially indicated for glazes which contain lead and boron.

尤其适用于含铅、含硼的釉药.

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Magnetic cobalt-boron alloy deposits were prepared by electroless plating.

采用化学镀制得钴硼磁性合金镀层.

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Ways to further improve special boron bearing diamond are pointed out.

指出了进一步提高特殊类型含硼金刚石质量的方法与途径.

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Sodium, sulfate, magnesium, calcium, carbonate, bicarbonate, chloride, and boron should be determined in a water anylasis.

水质分析要测定钠 、 硫 、 镁 、 钙 、 碳酸盐 、 重碳酸盐 、 氯和硼的含量.

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There is still great interest in boron as an essential plant nutrient.

迄今硼作为植物的必要营养元素仍极其重要.

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Boron carbon nitride ( BCN ) thin films were deposited by radio frequency ( RF ) magnetron sputtering .

采用射频 磁控溅射 技术制备出硼碳氮 ( BCN ) 薄膜.

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The phenomenon of boron particle ignition in hot air was defined.

说明了硼粒子在热空气中的点火现象.

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Borax is the compound commonly applied to the soil to correct boron deficiency.

硼砂是矫正土壤缺硼的常用硼化合物.

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By the investigation of instantaneous critic loads and durable critic loads, the mechanism of creep buckling of boron fiber/ epoxy matrix laminated plates and boron fiber/ epoxy matrix cylindrical shells exhibiting viscoelastic behavior is revealed.

通过对瞬时临界荷载与持久临界荷载的分析，以硼纤维环氧树脂基复合材料为例，揭示了粘弹性层合板和层合圆柱壳在蠕变荷载下的延迟失稳机制。

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DHS-B Utma-high purity , 10 W alkali, low aluminum, low boron, semiconductor grade.

高纯度, 低碱, 低铝, 低硼, 半导体级.

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Research on the Production and Properties of Boron Steel Produced by Using Pig Iron Containing Boron as Alloying Agent

超强钕铁硼永磁合金以含硼生铁为添加剂的硼钢的制备和性能研究

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There is a linear relationship between boron content and toughness. The boron content must be controlled below 0.0020% in order to make AKV ≥ 50J. A discussion was made on the cause of influence of boron on the low temperature toughness.

为了使-20℃的V型缺口试样冲击功A（Kv）≥50J，必须将酸溶硼含量控制在0.0020%以下，分析了硼影响韧性的原因。

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In the alkaline solution, boron was in the form of B ( OH) 4-which can be absorbed by boron specific ion exchange resin, so boron was separated from the great mass of matrix and the matrix effect of ICP MS was insignificant.

硼元素在碱性条件下主要以B（OH）4-形式存在于溶液中，可被硼特效离子交换树脂所交换吸附，故能很好地与大部分基体元素分离，从而减少基体效应。

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Iron-nickel-phosphorus-boron quaternary alloy electroless plating on copper panel was described.

在铜基上化学镀铁 - 镍 - 磷 - 硼四元合金.

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High boron iron-based alloy ( HBIA ) is a kind of new wear-resistant material.

高硼铁 基合金 是一种新型 耐磨 材料.

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At present, much attention had been paid to the study of the surfactants with four coordinate boron oxygen heterocycles structure, however, the main work was focused on the synthesis of the surfactants containing boron with short-carbon chain alkyls and their basic properties.

目前研究的方向主要是含四配位硼氧杂环结构的表面活性剂，但都是对一些含短链烷基的合成和基本性质研究，对含长碳链的还极少见文献报道。

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The presence of boron or a boron compound in neutron shields has certain advantages.

在中子防护体中加入硼或一种硼的化合物是有一定优点的.

词典精选例句

It is deduced that the main sintering mechanisms shill be volume diffusion and grain boundary diffusion for pure boron carbide and grain boundary diffusion for carbon_doped boron carbide showing activated sintering.

纯B4C的烧结致密化机制为体扩散和晶界扩散，而掺碳B4C的烧结机制主要为晶界扩散，因此，掺碳对B4C起到了活化烧结的作用。

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Phosphorus and boron act as glass flow temperature modifiers.

硼和磷作为玻璃流程温度修饰词.

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Boron Hydrate, an Important Immigrating Form in Boron Ore Formation

硼氢化物是形成硼矿床的重要迁移形式

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Determination of natural fractional isotope abundance ratio of boron in boron trichloride by infrared spectroscopy

三氯化硼中硼同位素天然丰度比的红外光谱测定

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The article introduce the method that using wet chemical to detect chlorine in boron trichloride, and how to clear the disturbance of boron trichloride.

介绍了化学比色法测定三氯化硼中微量氯的过程及消除基体干扰的方法。

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Production: monomer boron, Danhuapeng, boron anhydride, without detectable; Hydrochloric acid , Yean, ammonia water.

生产: 单体硼, 氮化硼, 硼酐, 无水硼砂; 盐酸,液氨, 氨水.

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Boron concentrate and boron rich slag were used to produce borax and boric acid.

硼精矿和富硼渣可代替面临枯竭的硼镁石作生产硼砂和硼酸的原料.

网络文摘精选

Diffusion Mechanism of Boron in Condensed System(ⅰ)& Diffusion of Boron in Metal

凝聚系统中硼元素的扩散机制（Ⅰ）&硼在金属中的扩散

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The distribution of boron in the Changjiang estuary water is investigated and found that there is a good correlation between boron content and specific conductance of water samples in it.

对长江口水中硼的分布规律进行了研究，得出本调查河段长江水中硼的含量与水样的电导率（盐度）有正相关性。

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Study on the Boron Oxide Carbothermal Reduction Synthesis of Boron Carbide

硼酐碳热法合成碳化硼的研究

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A hardfacing electrode containing boron and various alloy elements has been developed.

研制出一种含硼等多种合金元素的耐高温磨损堆焊焊条.

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