查询词典 magnesium borate

The antiwear and friction-reducing performances of sodium borate ,potassium borate and lanthanum chloride in water were evaluated on a four-ball friction tester.

结果表明，硼酸钠、硼酸钾和氯化镧可一定程度地提高水的极压、抗磨和减摩性能，硼酸钾性能最优，硼酸盐与氯化镧复合后性能进一步改善。

According to molecular design, an inter-molecular-coordination borate eater containing nitrogen as coupling a-gent was synthesized. There are two reactive groups, amino and butoxy in the borate ester molecule.

中文文摘］通过分子结构设计，合成了一种氮-硼内配位结构的硼酸酯偶联剂，解决了硼酸酯水解稳定性差的问题，同时分子结构中含有氨基、丁氧基等活性基团。

In borate or phosphate buffered NaCl solutions with a constant total concentration of borate or phosphate, E_ increases with an increase in pH. With the increase of the concentration of chloride ions, E_ decreases markedly in the test solutions. Moreover, the buffer capacity and concentration of nonaggressive anions in the test solutions also exerts some effects on the crevice corrosion of Type 304 stainless steel. Furthermore, the cooperative inhibition effect of the environmental factors on crevice corrosion was investigated. The potential of crevice corrosion E_(cc shows a strong dependence on a parameter J, which was called as general environmental factor and defined as the product of concentration of nonaggressive anions, pH, buffer capacity and concentration of chloride ions.

在含NaCl 的硼酸或磷酸盐缓冲溶液中，在相同的缓冲溶液总浓度下，E_c随pH 值增加而增加；但随着氯离子浓度的增加，E_c显著降低；另外缓冲容量及其阴离子对304 不锈钢缝隙腐蚀也有影响；最后实验研究了这些环境影响因素的协同影响规律，得出环境综合影响因素参数J，J 由pH 值、缓冲容量、氯离子浓度及其缓冲溶液中其它阴离子浓度定义，缝隙腐蚀电位与参数J 有好的线性关系。

Firstly, 2-Hydroxy-4-octyloxybenzophenone was synthesized from 2,4-dihydroxybenzophenone and octyl chloride in the presence of N-octyl-diethanolamine borate as ion liquid, and 2-Hydroxy-4-methyloxybenzo phenone was synthesized from 2,4-dihydroxybenzophenone and dimehylsulfate in the presence of N-octyl-diethanolamine borate as catalysis.

首先作为离子液体催化合成了2-羟基-4正辛氧基二苯甲酮和作为相转移催化剂合成了2-羟基-4甲氧基二苯甲酮。

Two new binuclear complexes, [TpCu(μ-1, 1-N3)2CuTp](1) and [Tp(superscript *)Co2CoTp(superscript *)](2) Tp=tri (pyrazolyl borate and Tp(superscript *)=3,5-dimethyltri borate, have been synthesized and characterized by IR, UV-vis, ESR, and CV. The crystal structures of both complexes have been determined by X-ray single crystal diffraction.

合成了两个新型的含三吡唑硼配体的双核铜配合物[TpCu(μ-1， 1-N3)2CuTp](1)和双核钴配合物[TpCo2CoTp](2)，并通过IR，UV-vis，EPR，CV，X-射线单晶衍射等手段进行表征。

Hydrothermal method is one is one of ways to prepare but no Zinc Borate micro-powder and of be report preparation oxid powder,but no Zinc Borate micro-powder.

这样既降低原料成本，又能充分利用工业废料，变废为宝，符合环保要求，为合理利用工业固体废料开辟了一条绿色环保的途径。

The magnesium in rare earth-magnesium intermediate alloy was determined by flame atomic absorption spectrometry with the hyposensitive line of magnesium (202.5 nm) as the analytical line.

以镁的202.5nm次灵敏线为分析线、火焰原子吸收光谱法测定了电解稀土－镁中间合金中的镁含量。

Third, most magnesium alcoholates are prepared by alcoholysis.The process is based on the exchange of alkoxide groups of a metal alcoholate in the presence of an alcohol other than the alcohol corresponding to the original alkoxide,i.e.on the alcoho- lysis of a metal alkoxide with a different alcohol. Primary alcoholates can be prepare- d by this process,such as magnesium di-n-propanolate,magnesium di-n-butanolate,m- agnesium di-isobutanolate.

该方法适用于较高沸点的伯醇的醇镁化合物，例如正丙醇镁、正丁醇镁、异丁醇镁等，但是用醇解法制备出的叔丁醇镁，其纯度只有80％，这是由于叔丁醇具有较大的空间位阻效应，阻碍了醇交换的进一步进行，并且叔丁醇沸点与甲醇相差不大，使得甲醇难以快速蒸出，只能得到一种混合醇盐产物。

But magnesium alloy has a hexagonal close-packed crystal structure with limited number of operative slip systems at room temperature, so magnesium alloys are normally low formability near the room temperature, and limits the expansion of magnesium alloy applications.

但是由于镁合金是密排六方结构，可开动的滑移系比面心立方和体心立方金属的少，使得镁合金的室温塑性较低，降低了成形能力，限制了变形镁合金的推广应用。

Potassium-magnesium fertilizer contained a large number of calcium into the soil, but also play a role in disinfection, will be reduced as a result of continuous cropping and land compaction caused by bacteria, such as increasing the hazards of cotton, also contained potassium magnesium manganese fertilizer can reduce damping-off , and Verticillium wilt incidence, Mo can enhance the ability of cotton resistance to Verticillium wilt; and management of salinity through the potassium-magnesium fertilizer to improve the ecological balance of the soil environment, absorption of nutrients and more robust plants, their resistance to strong and difficult illness.

钾镁肥中所含的大量钙元素进入土壤后，也起到消毒作用，会减少由于重茬和土地板结等造成病菌增多对棉花的危害，同样钾镁肥中所含的锰可减少立枯病、黄萎病和枯萎病的发生，钼还能增强棉株抗黄萎病能力；而且钾镁肥通过治理盐碱，改善土壤生态平衡环境，吸收的养分多，植株健壮，本身抗逆性就强，不易生病。

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。

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