查询词典 formate

Perseverance can sometimes equal genius in its results.calcium caseinate calcium formate calling card calvin klein camcorder accessory camera cameras camlet sock camlet socks camping light "There are only two creatures," says a proverb,"who can surmount the pyramids—the eagle and the snail."

俗话说：&能登上金字塔的生物，只有两种——鹰和蜗牛。&

By use of the double-jet apparatus controlled by a microcomputer, cubo-octahedral AgBr grain emulsions in which formate ions were doped at subsurface of AgBr microcrystals, were prepared.

使用反馈式微机控制双注乳化仪，制备了甲酸根离子掺杂于颗粒次表面的立方八面体溴化银微晶乳剂。

A chiral phase transfer catalyst, N-benzyl quinine bromide, was synthesized from natural chiral compound. And 2,5-bimethyl-4-(3-nitrobenzene)-1,4-bihydrogenation pyridine-3--4-methyl formate (viz. nitrendipine) was synthesized by this chiral phase transfer catalysis, and characterized by elemental analysis, infrared spectrum,1H nuclear magnetic resornace, and X-ray single-crystal diffraction.Key words: ammonium; chiral phase transfer catalyser; crystal structure

通过对天然手性物质进行修饰合成手性相转移催化剂N-苄基溴化奎宁，并对目标分子2，5-二甲基-4-(3-硝基苯)-1，4-二氢吡啶-3-甲酸乙酯-5-甲酸甲酯进行不对称催化合成，并通过红外光谱和核磁共振氢谱对化合物进行了表征，用X射线单晶衍射法测定了该化合物的晶体结构。

Ion chromatography analysis on the leachates shows that formate generally exists as dominant short-chain carboxylate species.

浸取液的离子色谱分析表明，大井银铜矿各矿化阶段的成矿流体中普遍存在以甲酸为主要物种的短链羧酸。

It is a curved rod, Gram negative, motile, form light-yellow colony, utilize carbon dioxide and sodium formate as carbon sources, but could not utilize methanol, sodium acetate, and trimethylamine.

该菌呈弯曲杆状，革兰氏阴性，有运动性，形成淡黄色菌落，能利用二氧化碳和甲酸钠作为碳源，但不能利用甲醇、乙酸钠和三甲胺。

The last and the most important part is the detail design of injection mould , include formate port design , noting system ,cooling system, air supplement and platoon overflows system, the outing organizations, the organization for taking out the core and so on.

最后对模具的具体结构进行了详细的设计，包括成型零件具体尺寸计算，浇注系统，冷却系统，引气排溢系统，脱模机构，抽芯机构等部分的设计。

Allowable current density is firstly confirmed by analyzing the variation of current efficiency with current density. Effects of content of ammonia ions, pH value and the content of sodium formate upon the throwing power, covering power and ability of anti-impurities, were measured.

首先通过分析电流效率随电流密度的变化情况确定了镀液的许用电流密度，然后测定了氨的含量、镀液pH值、甲酸钠的含量等因素对分散能力、深镀能力、抗杂性能等镀液性能的影响。

The optimun technological conditions were studied on the synthesis of 9-flourenylmethanal by the reaction of flouren and ethyl formate , and the synthesis of 9-flourenylmethanol by the reaction of 9-flourenylmethanal and methanal with sodium ethylate as catalyst.

研究了乙醇钠为催化剂，由芴与甲酸乙酯合成芴甲醛，再由芴甲醛与甲醛合成苯甲醇的工艺条件，结果表明：合成芴甲醛时，当芴为 16g时，催化剂乙醇钠 4 。5g ，甲酸乙酯 66ml，反应时间为 36h ，收率 75 %：合成芴甲醇时，当芴甲醛为 19g时，甲醛 7.0ml，10 %NaOH溶液 70ml，反应时间 2 。0h ，收率：63

The B3LYP/6-31+G level of theory and the polarizable continuum model are employed to study the binding interactions between amidinium and tetrazolate anion which have two binding modes (side-on and end-on) as well as the binding interaction between amidinium and formate anion. We find, in the gas phase, that the end-on acetamidinium tetrazolate is more stable with its interaction energy 3.56 kJ/mol higher than that of the side-on.

采用密度泛函B3LYP/6-31+G 方法和自洽反应场极化连续模型研究四唑负离子与脒类正离子形成的两种形式的复合物及甲酸根负离子与脒类正离子形成的复合物在气相和二甲亚砜溶剂中的稳定性。

Ethyl formate could provide good disinfestations of all three adults'species at 25°C and 70% r.h.

赤拟谷盗Tribolium castaneum和谷蠹Rhyzopertha dominica F。

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？