硼

This is done by absorbing excess neutrons in boron control rods.

这要用硼控制棒吸收多余的中子来完成。

In the second part, the cross-coupling reaction of organoboronic acid witharyl halide catalyzed by Pd has been studied, and the 〓 catalyzedcross-coupling reaction in organic phase and the 〓-TPPTS catalyzed reac-tion in water phase have been investigated also.

结果表明，无论是有机相催化反应还是水相催化反应，都得到了很高的转化率和产率。该反应条件温和，并且硼试剂和亲电底物上可以带各种官能团，适用范围极宽，是一个极有应用价值的反应。

For example, use the diamond grinding tool to process the hard alloy as well as the ceramics, the agate, the optical glass, the semiconducting material, the stone material, the concretes and so on nonmetallic material and the non-ferrous metal and so on; use the cubic boron nitride grinding tool to Process the tool steel, the molding tool steel, the stainless steel, the heat-resisting alloy and so on, especially to processes high vanadium high-speed steel, may obtain satisfied processing effect.

例如，用金刚石磨具加工硬质合金以及陶瓷、玛瑙、光学玻璃、半导体材料、石材、混凝土等非金属材料和有色金属等；用立方氮化硼磨具加工工具钢、模具钢、不锈钢、耐热合金等，特别是加工高钒高速钢等黑色金属，均可获得满意的加工效果。

This indicates that the phase formation temperature of MgB2 do not depend on the B powder size.

这表明MgB2相形成的温度并不特别依赖于硼粉的尺寸。

The size effect of the raw B powder on the MgB2 phase formation is studied by the technique of in-situ high temperature resistivity measurement.

原料硼粉在MgB2相形成中的作用已经利用原位高温电阻率的测量技术进行了研究。

However, silanes do not interact to any significant degree with the ubiquitous calcium carbonate, or with barium sulphate, carbon black or boron compounds, and cannot be used as coupling agents with these fillers.

但是，硅烷不与使用普遍的碳酸钙有任何作用，与硫酸钡、碳黑或者硼化合物也是这样，因此硅烷不能用作这些填料的偶联剂。

Uses the solution that a cups of half hot water and half soup ladle boron powder are made into to be able to be effective treat black-headed.

用一杯半热水和半汤勺硼粉制成的溶液可以有效治疗黑头。

Fruits small, irregularly shaped with surface depressions, corky lesions or scabs and ring of corky splits at calyx -end. Compare with "blossom-end rot".

缺硼的番茄果实：果实小，形状不规则，表面塌陷，伤口木栓化或结痂，萼端裂口木栓化呈环形，比较于&脐腐病&。

Referring to the combustion heat testing method of GJB770A-97, with oxygen bomb calorimeter models GR3500, the problems in the combustion heat test of fuel-rich propellant based on boron were investigated.

参照GJB770A-97燃烧热测试方法，采用GR3500型氧弹式热量计，实验研究了含硼贫氧推进剂燃烧热测试中存在的问题，数值模拟了氧弹中的温度分布。

Just as pure carbon can come as diamond or graphite, boron comes in multiple forms - as many as 16 have been reported.

就像纯碳可以以钻石或者石墨的形式出现，硼也以多种多样的形式出现--据报道有已经发现16种形态。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。