含酸的

two kinds of ash-less and phosphorous-free compounds, referred to as boma and loma, as lubricating oil additives, were synthesized to replace or partially replace zddp. they were characterized by means of infrared spectroscopy, mass spectroscopy and element analysis.

合成了两种无灰无磷抗磨添加剂：不含三嗪环的含羟基羧酸酯衍生物boma；含羟基的三嗪羧酸酯衍生物loma，分别用元素分析和红外光谱对分子结构进行表征。

The causes in the oxidizability intensity of oxyacid of chloride and property of no rule are discussed in the intensity of chemical bond, the nature of thermo-.

本文从化学键的强度、热力学性质、含氧酸的结构对称性等方面，分析讨论了氯的含氧酸氧化性的强度和不规则性的原

This study on adsorb resin for wastewater treatment and its application were discussed in the paper,example treating of hydroxybenzene wastewater,acid wastewater and sulfanilamide wastewater.

介绍了吸附树脂在废水处理（重点介绍处理含酚废水、含酸废水、含磺胺废水）中的应用。

It is seen that oxygen group function of additives is very remarkably in tribological characteristics, that is EP property of dihydroxy docosanoic acid without active element is very near to that of SO with active element sulfur.

双羟基廿二酸的极压性与不含氧基团的硫化烯烃十分接近，以液体石蜡为基础油，最大无卡咬负荷P〓值，前者为539N，后者为588N，再者相差49N，可以看出，氧基团的作用是十分显著的，即无活性元素的双羟基廿二酸的极压性可以十分接近于含活性元素的抗磨极压剂硫化烯烃。

A chromium free conversion coating at least equivalent in corrosion protective quality to conventional chromate conversion coatings can be formed on metals, particularly cold rolled steel, by a dry-in-place aqueous acidic liquid comprising: a component of anions, each of said anions consisting of at least four fluorine atoms and at least one atom of an element selected from the group consisting of titanium, zirconium, hafnium, silicon, and boron, and, optionally, ionizable hydrogen atoms, and optionally, one or more oxygen atoms; a component of cations of elements selected from the group consisting of cobalt, magnesium, manganese, zinc, nickel, tin, zirconium, iron, and copper; the ratio of the total number of cations of this component to the total number of anions of component being at least 1:5; sufficient free acid to give the composition a pH in the range from 0.5 to 5.0; a component selected from the group consisting of phosphorus-containing inorganic oxyanions and phosphonate anions; and a component selected from the group consisting of water-soluble and water-dispersible organic polymers and polymer-forming resins and, preferably, also including a component selected from the group consisting of tungstate, molybdate, silicotungstate, and silicomolybdate anions.

通过对包含以下成分的含水酸性液体进行干燥，可以在金属上形成无铬的转换涂层，该涂层与普通铬酸盐转换涂层相比，至少在抗腐蚀质量上等效：$_一种阴离子成分，所述各个阴离子包括至少4个氟原子，至少选自钛、锆、铪、硅与硼元素中的1个原子。任选地可离解的氢原子，任选地1个或多个氧原子；$_一种选自钴、镁、锰、锌、镍、锡、锆、铁与铜元素的阳离子成分，上述成分的阳离子总数与成分内的阴离子总数之比至少为1∶5；$_足够的游离酸以使该组合物的pH值在0.5～5.0的范围内；$_一种选自含磷的无机含氧阴离子与膦酸盐阴离子的成分；$一种选自水溶性与水可分散性有机聚合物与聚合物形成的树脂的成分，优选还包括一种选自钨酸盐、钼酸盐、钨硅酸盐与钼硅酸盐阴离子的成分。

In order to improve the reaction rate of pyrotechnical reagent, transition metal oxides, Fe2O3 and CuO, were added into potassium perchlorate and potassium nitrate respectively by mixing and crystallization methods. Accelerating rate calorimeter was used to study the catalytic behavior of TMO.

为了提高含高氯酸钾和硝酸钾烟火药剂的反应速率，应用混合法和结晶法将过渡金属氧化物氧化铁添加到含高氯酸钾的烟火药剂中，将氧化铜添加到含硝酸钾的烟火药剂中。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。

The new acid system can stabilize the ferric ions, furthermore it can prevent the acid sludge forming during acidizing treatment, also can eliminate sulphide scale.

实验表明螯合酸对于高含碳酸盐岩砂岩储层具有很好的酸化效果，对于高含酸敏性矿物而碳酸盐岩含量较低的砂岩储层酸化效果有限，但不会给储层带来二次伤害。

To provide evidence for identifying adulteration in dairy drinks ,we studied the content of free glycin with glutamic acid and protein and the inter relationship in milks and dairy drinks .

为给违规添加甘氨酸掺杂造假含乳饮料的判定提供科学依据，测定了纯牛奶和含乳饮料中游离甘氨酸、谷氨酸的质量浓度和蛋白质的质量比，并对其相互比例关系进行研究。

Acetic acid equipments using material in PTA, PVA, aldehyde oxidation and methyl alcohol carbonyl synthetic four plants in chemical industry and chemical fibre production are analyzed.

对化工化纤生产中的精对笨二甲酸、聚乙烯醇、乙醛氧化生产醋酸与甲醇羰基合成醋酸4个装置醋酸设备用材进行分析，并对含Cl-、含Br-、含I-的醋酸及含Cl-的甲乙混酸对不锈钢、铜、钛与镍基合金等金属材料腐蚀原因作了讨论。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新