查询词典 magnesium borate

Surface modified nano-sized mgnesium hydroxide was prepared by direct precipitation method with magnesium nitrate hexahydrate and sodium hydroxide as raw materials,and sodium fatty alcohol polyoxyethylene ether carboxylate as modifying agent.The optimum dosage of modifying agent was 0.2% of the mass of magnesium hydroxide,which was confirmed by sediment volume experiment.Modified and unmodified samples were characterized by fourier transform infrared spectroscopy,X-ray diffraction,transmission electron microscope,and tap density test.

以六水硝酸镁、氢氧化钠为原料，脂肪醇聚氧乙烯醚羧酸钠为改性剂，采用直接沉淀法一步合成改性纳米氢氧化镁，用沉降体积实验确定改性剂的最佳用量为氢氧化镁质量的0.2%，通过红外光谱、X射线衍射、透射电镜、表观密度对改性前后的样品进行表征。

Second, fire retardant magnesium fire far Thai glassy plate at 800 open flame is not burning, 1200 without flame, do not reach incombustibility GB8624A class standards, with 8mm glass magnesium fire board to do the fire retardant door or wall can be about 3 hours .

一、绿色环保远泰玻镁防火板由矿石无机物、玻璃纤维和植物纤维等天然材料构成，不含甲醛、石棉、苯、氨等有毒有害物质，无辐射、无气味、不怕白蚁等虫害侵蚀，环保性符合国家要求，是国家政策鼓励的代替木质类新产品，是国际上流行的环保、节能、时尚的装饰板材。

Two solutions were proposed in this article. For the first, interlay was added to avoid the contact of magnesium and aluminum and the produce of the intermetallic compounds; for the second, laser- TIG hybrid welding method was adopted to reduce the contact period of magnesium and aluminum and the mount of intermetallic compounds produced.

本文提出了两种解决途径：第一，中间加入镀层避免镁和铝的接触，避免金属间化合物的生成；第二，采用激光—TIG复合热源焊接减少镁和铝接触时间，减少金属间化合物的生产量。

Under the press of high content of calcium and magnesium in rocks, alkaline karst soil have low available forms of phosphorus and potassium in macroelement, high calcium and magnesium in middle element, enough necessary microelement except available form of boron, and more than 1 mg/kg cadmium of toxic element.

中药材金银花富集钙、镁、磷、钾、铜、锌等元素，对镉吸收低，适宜在岩溶地区种植。马尾松纯林受土壤低有效磷、钾和硼，高有效锌和钙的阻碍以及高镉的轻微毒害为不适宜树种。

With magnesium oxide and magnesium chloride as the raw materials, the magnesite products are rapidly entering the market of constructing materials.

以氧化镁、氯化镁为原料的菱镁制品正迅速进入建材市场，其表面活性剂具有疏水和分散颜料的作用

Annual production capacity of 1500 tons of light magnesium carbonate, magnesium oxide 800 tons.

年产轻质碳酸镁1500吨，氧化镁800吨。

A black magnetic mineral consisting of magnesium carbonate; a source of magnesium.

一种黑色的磁性矿物，由碳酸镁组成，是镁的来源。

And using basic magnesium carbonate by synthesizing as raw materials, the condition of calcining magnesium oxide was studied in this paper.

文中探讨了制备碱式碳酸镁的工艺条件并进行了优化，研究了利用自制碱式碳酸镁产品烧制氧化镁的过程。

Our country is one of the main nations which can produce magnesium carbonate and magnesia in the world and the output of magnesium carbonate and magnesia occupies the definite status.

粗放的生产经营方式不但导致了我国大量优势资源的浪费，而且造成了生态的破坏和环境的严重污染。

The content of Magnesium Chloride flake is over 46%, and the content of Magnesium Chloride crystal is over 99%.

片状氯化镁主含量在46％以上，晶体氯化镁主含量在99％以上。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。