查询词典 oxalic

Cess conditions,parameters and improvement on the production equipments for sythesizing oxalic acid under the oxidizing reaction by nitric acid with the waste mother liquid of gulonic acid as the raw material.

以古龙酸废母液为原料，在硝酸的氧化下生产草酸，开发了废水综合利用的新工艺。

Organic: dihydroxybenzene, oxalic acid, hydroquinone, fumaric acid, gulonic acid, o-dihydroxybenzne; m-dihydroxybenzene; coke powder, tartaric acid, cyanuric acid, G salt, R salt.

有机物：苯二酚、草酸、对苯二酚、富马酸、古龙酸、邻苯二酚、间苯二酚、焦炭粉、酒石酸、氰尿酸、 G 盐、 R 盐。

Diisopentyl oxalate was synthesized with oxalic acid and isoamyl alcohol as raw materials and sodium bisulfate as catalyst.

以草酸和异戊醇为原料，采用硫酸氢钠作催化剂合成草酸二异戊酯。

In this paper, di-isobutyl oxalate was prepared from oxalic acid and isobutyl alcohol using NaHSO_4 and p-toluenesulfonic acid as catalysts.

以草酸和异丁醇为原料，在酸性催化剂作用下进行酯化反应合成出一种新型柴油十六烷值改进剂——草酸二异丁酯。

II. The State practices the special-purpose control system with respect to the production, management, use and export of ephedrine (including extracts from ephedra grass and chemically synthesized, laevorotatory and dextrotatory) as well as their saline categories such as ephedrine hydrochloride, ephedrine oxalic, ephedrine sulphate and raw products of ephedrine (including ephedrine extracts, ephedrine extract powder and ephedra powder), ephedrine derivatives and prescribed preparations made with ephedrine as the raw material.

二、国家对麻黄素(含从麻黄草提取和化学合成的，包括左、右旋)及其盐类如盐酸麻黄素、草酸麻黄素、硫酸麻黄素和麻黄素粗品(含麻黄浸膏、麻黄浸膏粉、麻黄草粉)、麻黄素衍生物以及以麻黄素为原料生产的单方制剂等的生产、经营、使用、出口实行专项管理制度。

The State practices the special-purpose control system with respect to the production, management, use and export of ephedrine (including extracts from ephedra grass and chemically synthesized, laevorotatory and dextrotatory) as well as their saline categories such as ephedrine hydrochloride, ephedrine oxalic, ephedrine sulphate and raw products of ephedrine (including ephedrine extracts, ephedrine extract powder and ephedra powder), ephedrine derivatives and prescribed preparations made with ephedrine as the raw material.

二、国家对麻黄素(含从麻黄草提取和化学合成的，包括左、右旋)及其盐类如盐酸麻黄素、草酸麻黄素、硫酸麻黄素和麻黄素粗品(含麻黄浸膏、麻黄浸膏粉、麻黄草粉)、麻黄素衍生物以及以麻黄素为原料生产的单方制剂等的生产、经营、使用、出口实行专项管理制度。

The State practices the special-purpose control system with respect to the production, management, use and export of ep hedrine (including extracts from ep hedra grass and chemically synthesized, laevorotatory and dextrotatory) as well as their saline categories such as ep hedrine hydrochloride, ep hedrine oxalic, ep hedrine sulphate and raw products of ep hedrine (including ep hedrine extracts, ep hedrine extract powder and ep hedra powder), ep hedrine derivatives and prescribed pr ep arations made with ep

国家对麻黄素(含从麻黄草提取和化学合成的，包括左、右旋)及其盐类如盐酸麻黄素、草酸麻黄素、硫酸麻黄素和麻黄素粗品(含麻黄浸膏、麻黄浸膏粉、麻黄草粉)、麻黄素衍生物以及以麻黄素为原料生产的单方制剂等的生产、经营、使用、出口实行专项管理制度。

The pot experiment was carried out to study the effect of different organic acids, EDTA, citric acid, oxalic acid and malic acid, on mobilization of Cu in soil and Cu uptake by Leersia hexandra Swartz.

文章采用盆栽试验研究了EDTA、柠檬酸、草酸和酒石酸对土壤中Cu的活化和李氏禾吸收Cu的影响。

The results indicated that the concentration of Cu in the soil is 220.16 mgkg^(-1) contrast to the CK 500.31 mgkg^(-1) significantly decrease when the concentration of EDTA in the soil is 2 mmolkg^(-1) that explains EDTA treatment significantly decreased soluble Cu content in soil because of translating into Cu of water distill floating on the surface of soil and most accumulating around root. Contemporary, application of EDTA to the soil significantly enhanced mobilization of Cu in soil and increased Cu uptake in shoot of Leersia hexandra Swartz., the highest concentration in the leaves 336.54 mgkg^(-1) is 4 times higher compared with the ck 80.34 mgkg^(-1). However, citric acid, oxalic acid and malic acid inhibited mobilization of Cu and less significantly affected shoot Cu accumulation.

结果表明，当向土壤中施加质量摩尔浓度为2mmolkg^(-1)的EDTA时，土壤中Cu质量分数为220.16mgkg^(-1)与空白土壤中500.31mgkg^(-1)相比明显减少，说明EDTA可以极显著的降低土壤中的铜质量分数，使其转化成水提取态的Cu浮于土壤表面，并大部分聚集在根部周围，同时向土壤中施加EDTA不但促进了对Cu的活化而且显著提高了李氏禾对Cu的吸收，叶中最高质量分数达到336.54mgkg^(-1)是对照中80.34mgkg^(-1)的四倍；而柠檬酸、草酸和酒石酸则抑制了Cu的活化，但对李氏禾地上部分的Cu质量分数影响不大。

For dicarboxylic acids, oxalic acid and malonate acid were the two predominant species, with annual average concentrations of 548.13 ng·m-3 and 530.1 ng·m-3, respectively.

采用GC/MS定量分析了2003年9月至2004年7月期间北京市PM2.5中33种脂肪酸（C10~C32）和10种二元酸（diC2~diC11）的含量。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。