查询词典 boron

The optimal boron concentration for growth of pea (Pisum sativum L.) andcucumber (Cucumis Sativus L.) plants was screened by designing a series of boronconcentration in nutrient solution and the influeuce of boron deficiency or toxicityon integrity of cell membrane in different organs of the two plants was studied bymeasuring pH of the nutrient solution,〓 concentration and conductance in rootexudate solution and extracting solution of different organs from the two plants.

用不同浓度硼的营养液培养豌豆、黄瓜植株，筛选和确定在温室条件下生长所需的最适硼浓度和硼毒害浓度；进而通过对缺硼、对照和硼毒害处理后营养液pH变化，根分泌物和不同组织浸提液中K+浓度和电导率的测定，研究了缺硼和硼毒害对两种植物不同组织细胞膜完整性的影响。

As flux used in light metal processing for metal surface treatment; as component in the production of aluminum-titanium-boron alloys and for the fabrication of grinding wheel and abrasive disc to reduce operating temperature; as flux used in welding; as fire retardent for cotton and artificial fibre; rodent for the removal of exposed lead in printed circuit board; chemical analytical reagent in electrochemistry; used to melt with silver, gold, stainless steel; as material to produce boron alloys.

作为熔剂用于轻金属加工对金属表面处理，制造铝钛硼合金和作砂轮研磨盘的成份，以降低操作温度；用于焊接上作助熔剂及制造其它氟盐的原料；用作棉花和人造纤维的阻燃剂，用来清除印刷电路中露出铅的侵蚀液；用于电化学合成的化学分析试剂，用于熔接和熔合银、金、不锈钢等金属，可做铝镁浇铸生产含硼合金的原料。

It is explained that the large fractionation of boron isotope observed in tourmalines of Altay No. 3 pegmatite is resulted from the fractionation of boron isotopes between tourmaline and muscovite, and also tetraborate, in combination with the fractionation between fluid and melt phases.

本次研究利用电气石-白云母和电气石-四硼酸盐矿物间的同位素分馏以及熔体相-流体相间的同位素分馏，合理解释了阿尔泰3号伟晶岩脉电气石B同位素分馏过程，并首次获得伟晶岩形成、演化过程中B同位素组成演化的全程图谱。

Nickel-boron alloys form the basis of brazes used to join many nickel-base alloys,especially in aerospace.a eutecytic forms between nickel and nickel boride n and so a nickel boron braze can melt and flow without melting the nickel-base materials to be joined.

镍硼熔合依据镀黄铜过去常常加入许多镍基地合金的形式，特别是以航空航天。a eutecytic形式之间镍和镍硼化物n和镍硼如此镀黄铜可能熔化和流动，无需熔化将被加入的镍基地材料。

Precipitation of boron recovery from brines is essential to the boron resource exploiting.

沉淀法从卤水中提取硼对于硼资源的开发利用具有重要意义。

Results show that when the boron content is 8.3%, the B/CuO delay compositions are misfired, and the burning rates increase with increasing of boron contents from 11 % to 20%.

结果表明：当硼含量为8.3%时，硼／氧化铜延期药不能完全燃烧，出现瞎火；在硼含量为11%~20%范围内，随着硼含量的增加，随硼含量增加，硼／氧化铜延期药的燃速增加。

The experiment results show that the lowest synthesis pressure changed with the different proportion of added boron. At the same time, from the color change of synthesized diamond, we can see that it is an effective method to improve the content of boron in diamond crystal.

实验结果表明，随硼添加比例的不同，合成金刚石的最低压力点也不同；同时，通过不同添加比例的硼合成出金刚石的颜色，可得知该方法对提高金刚石内硼含量的有效性。

It is also found that the distribution of boron in diamond is asymmetric, and poor shape crystals and polycrystalls tend to form with the increase of the content of boron in diamond.

同时，实验还发现，硼在晶体中的分布情况存在着区域性，以及随着晶体内硼含量的增加，晶体晶形变差，而且容易生长聚晶。

Henan Zhecheng Jingxin Diamond Abrasive CO.,LTD.established in June 1990, is special in producing synthetic diamond powder coated diamond (Ni、Cu、Ti,synthetic diamond micro-powder and superfine power, the whole-type man-made diamond materials, RVD Synthetic Diamond , Diamond Micron Powder , Cubic Boron Nitride Crystal , Cubic Boron Nitride Crystal and diamond toolsPolycrystalline Diamond (PCD,Diamond Grinding Wheels,Diamond Grinding Wheels Diamond Segments ,Diamond/ PCD Wire Drawing Die Blanks,Flexible Polishing Pad,Brick Polishing Pad ,Diamond Cup Wheels,Diamond Core Bits,Diamond Core Drills, Electroplated Diamond Tools .

供应金刚石微粉，软磨片河南柘城晶鑫超硬磨料制品有限公司创建于1990年6月，现有员工150人，产品有6大类。70个品种，主导产品有人造金刚石和金刚石制品（各种型号金刚石，人造金刚石、电镀金刚石，金刚石软磨片，人造金刚石微粉和超细粉、人造金刚石整型料破碎料RVD、研磨膏、聚晶PCD。

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。

Some of them were ligated to the plasmid vector pCR 2.1 andsequenced,respectively.

将所获DNA片段克隆到pCR2.1载体进行测序，并与基因组数据库进行同源性比较。

Thinking since Google owns Blogger, I would be able to escalate this issue to the support team.

自谷歌的思考拥有Blogger的，我将能够缓解这一问题的支持团队。