查询词典 hydrogen fluoride

These studies indicate that the boron fluoride with nitromethane or acetone system with higher separation factor is superior to the anisole system used currently,but a more detailed study is.

采用苯甲醚、硝基甲烷、丙酮、甲基异丁基甲酮4种络合剂分别与三氟化硼合成出了4种络合物体系。

The results suggested that selenium might antagonize the neurotoxicity of fluoride on behavior and morphology.

硒是人体必需的微量元素，大量研究表明：适当浓度的硒对氟中毒有较强的拮抗作用[5～ 7] 。

Objective : To investigate the biological effect and function mechanism of sodium arsenite (NaAsO_2) and sodium fluoride in human lymphocyte in vitro and provide the basis for further study.

目的：观察氟、砷单独及联合作用对正常人淋巴细胞的生物学影响，为探讨氟砷联合作用对机体免疫功能的影响规律及其作用机制提供科学依据。

Objective: To investigate the biological effect and function mechanism of sodium arsenite (NaAsO2) and sodium fluoride in human lymphocyte in vitro and provide the basis for further study.

目的：观察氟、砷单独及联合作用对正常人淋巴细胞的增殖及IL2分泌情况，为探讨氟、砷单独及联合作用对机体免疫功能的影响规律及其作用机制提供科学依据。

The percentage of Cyanide, phenol, mercury and chromium which have little effect on water quality is small and the variation tendency is slow. The percentage of Ammoniac azote, TP, TN, Cd, potassium permanganate index and fluoride which have much effect on water quality is big and the variation tendency is great. The percentage of DO, BOD5, petrochemical compounds and lead lies in the mean place between two guidelines above, which plays a normal role in contributing to the water quality of Yuehai, but the variation tendency is obvious.

选取了15个参数作为评价因素，其中，氰化物、挥发酚、汞、六价铬等指标的权重较小，对水质变化的总体影响不大，并且年度变化趋势较平缓；氨氮、总磷、总氮、镉、高锰酸盐指数以及氟化物等指标在阅海湿地水质总体评价中所占比重较大，直接影响水道水质；DO、BOD5、石油类、铅等指标的权重介于上述指标的中间。

Transmission of the main sales agents various types of industrial belt: Germany orbit, Japan Bando Samsung Song, the United States Gates, Italy, and so Mr Gaudi Brand-name industrial belt, double-sided tooth belt, T2.5, T5, T10, T20, AT5, AT10, AT20, DT5, DT10, DT20 Metric timing belt, with variables, production and sales network of stainless steel conveyor belt, high temperature iron fluoride Long network zone, with Juan Zhi network, with high temperatures blankets; PVC, PU, PE, SIR conveyor belt, anti-static tape.

传动件主要代理销售各类工业皮带：德国奥比特，日本阪东三星松田，美国盖茨，意大利麦高迪等名牌工业同步带，双面齿同步带，T2.5，T5，T10，T20，AT5，AT10，AT20，DT5，DT10，DT20公制同步带，变数带，生产销售不锈钢输送网带，耐高温铁氟龙网带，聚胺脂网带，耐高温毛毡带；PVC，PU，PE，SIR输送带，防静电胶带。

Spent solutions were finally drained into a mixing trough forneutralization, and subsequently, calcium or barium hydroxide and flocculant were added. Precipitate producedsuch as calcium or barium sulfate, calcium fluoride were separated, and recovered water was obtained after pu-rified by ion-exchange column.

分析了铝合金生产工艺中各步骤的化学成分，根据分析结果将常温脱脂、碱蚀、出光、阳极氧化和封孔等不满足生产要求的溶液排放至混合槽内进行中和，再加入氢氧化钠和絮凝剂分离沉淀后，经离子交换柱，得到的回收水可返回生产槽重复使用。

Sewage pumps, liquor pump, self-priming pump, is clean water pump, hot water pumps, metering pumps, liquid pumps, potato starch pumps, beverage pump, pump defoamer, sugar pump, pipeline pump, strong pump, beer pumps, fluoride alloy pump, slurry pump, suction pump and so on many series, more than 1000 products with different specifications, but also the production of different specifications of models of flanges, valves.

污水泵，酒泵，自吸泵，is清水泵，热水泵，计量泵，药液泵，马铃薯淀粉专用泵，饮料泵，消沫泵，糖泵，管道泵，浓浆泵，啤酒泵，氟合金泵，渣浆泵，多吸泵等多种系列，1000多个不同规格的产品，同时还生产不同规格型号的法兰，阀门。

Benzine and Aspartame with sodium Fluoride - God I love to be poisoned first thing in...

汽油和阿斯巴甜与氟化钠-上帝，我爱中毒第一件事英寸。

It is prepared from pentachluorobenzonitrile by using KF as fluoride to substitute chlorine in the presence of benzonitrile under high temperature. But owing to the low solubility of KF and rigor synthesis condition, and the parallel auxiliary reactions, the speed of reaction as well as the yield is very low.

五氟苯甲腈的合成开发以五氯苯甲腈为原料在较高的温度下用氟化钾做氟化剂，通过取代苯环上氯原子而得到的，由于氟化钾在溶剂中溶解度低，合成条件要求苛刻，反应速度较慢，同时存在有平行竞争副反应，因而反应收率较低，国内尚无厂家生产。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。