查询词典 animal chemistry

New type of water chemistry for utility drum boiler and its principle and characteristic Two kinds of water chemistry's main principle and characteristic are detailedly analyzed. Against the problem of high eroding speed, high Fe content in feed water and boiler water, high scaling speed, short chemical cleaning interval, needing poisonous chemical deoxidant, etc for drum boiler's deoxidization water chemistry and difficulty of using oxidation water chemistry, a new type of water chemistry is put forward on the basis of analyzing the characteristic of whole power station's water steam cycle system, principle of two kinds of water chemistry and their practical effect in every cycle stage. Considering two water chemistry's merit, a new water chemistry called Limited Oxidation Water Chemistry is put forward, which is a local slight oxidization no-deoxidant water chemistry. And the proposed method's principle, control parameter, applying condition, start-lay up and emergency measures are initially calculated and analyzed.

三、新型汽包炉水化学工况的提出及其原理和特点详细分析了国内外现行两大类水化学工况处理的核心原理和特点，针对现行汽包炉还原性水化学工况处理所存在的系统腐蚀速度相对较大、给水和炉水铁浓度高、锅炉结垢速度快、机组酸洗间隔短、无法避免有毒化学除氧剂的使用以及氧化性水化学工况在汽包炉机组上应用的困难等问题，在详细分析电站整个水蒸汽循环系统的特点、两类水工况处理的原理和对循环中各段处理的实际效果等的基础上，综合两者的优点，提出了一种新型的局部轻微氧化性无除氧剂汽包炉水化学工况－"汽包炉有限氧化性水化学工况"处理原理，并初步计算、分析和确定了该种新型水化学工况的主要工艺控制参数、应用条件、启停与紧急情况处理等。

Inorganic chemistry, Organic chemistry, Analytical chemistry, Physical chemistry, Materials introduction, Research method and characterization technique of materials, Physical chemistry of inorganic nonmetallic materials, Solid state physics, Petrography of silicate materials, Inorganic nonmetallic materials science, Thermotechnical element and instrument, Electrical materials, Jewel and bowlder, etc.

无机化学、有机化学、分析化学、物理化学、材料导论、材料的研究方法及测试技术、无机材料物理化学，固体物理、硅酸盐岩相学、无机非金属材料学、热工基础与设备、电子材料、宝玉石学等。

From the experiment discovered for the first time the dimethyl ether may substitute CO to take the chain-carrying agent of the peroxy free radical chemistry amplifier system, and optimized the CH_3OCH_3-NO-HO_2 chemistry amplifying system determination condition, the CH_3OCH_3 best density is 1.876 ppmv, the NO best density is 1.3ppmv, and obtained this method chain length CL=124, 5 parallel determinations densities of HO_2 are the 44.0pptv, the relatively standard deviation is smaller than 4%; Although chemistry box model computed result indicated the dimethyl ether, the ethene, the propene and the ethanol all can take the chain-carrying agent of the peroxy free radical chemistry amplifier system, and their simulation chain length all grows up compared to the CO-NO-HO_2 chemistry amplifying systems, but experiments proved the ethene, the propene and the ethanol have not suit the chain-carrying agents.

首次从实验上发现二甲醚可以替代CO作为过氧自由基化学放大系统的链传递试剂，并优化了CH_3OCH_3-NO-HO_2化学放大系统的测定条件，CH_3OCH_3的最佳浓度是1876ppmv，NO的最佳浓度为1.3ppmv，并得到了这一方法的链反应长度(CL=124)，5次平行测定浓度为44.0pptv的HO_2自由基，相对标准偏差＜4％；虽然化学盒子模式计算结果表明二甲醚、乙烯、丙烯和乙醇都能作为过氧自由基化学放大系统的链传递试剂，并且它们的模拟链长都比CO-NO-HO_2化学放大体系的链长大，但是实验证明乙烯、丙烯和乙醇不适合作为过氧自由基化学放大系统的链传递试剂。

Adopting speech record analysis by making a sound while thinking ,aiming at Organic Chemistry test questions and doing a lot of individual case analysis, The author summarizes the successful problem-solving thinking strategy for outstanding students of Organic Chemistry questions then edites the successful problem-solving thinking strategy for outstanding students as a teaching plan and trains consciously the students in the experiment team adhibiting the problem-solving thinking strategy for Organic Chemistry in the usual teaching practice activities to find out the characteristics of students" problem-solving thinking activity in Organic Chemistry and to improve the students" ability of problem-solving in Organic Chemistry rapidly.

然后，将优生成功解题的思维策略编成教案，在正常的教学实践活动中，有意识地对实验组学生进行有机化学问题解决思维策略训练，以了解学生有机化学解题思维活动特征，促进学生有机化学问题解决能力的迅速提高。实验以株洲六○一中学高三年级理科两个班的学生为被试，以自编《高中有机化学问题解决能力检验的前测和后测试题》和自编《高中生有机化学解题思维策略训练教程》各1套等为材料，通过6周的教学训练，收集训练前、后有机化学测试成绩等数据，采用SPSS10.0进行统计分析，得出如下研究结论： 1、对高三年级学生进行有机化学解题思维策略训练能有效地提高其有机化学解题能力。

The Department of Animal and Poultry Science is primarily dedicated to education and research in animal and poultry science including animal breeding and genetics, animal nutrition, animal physiology, and growth and metabolism, animal welfare, aquaculture, and the feeding and management of horses.

动物和家禽科学系主要致力于动物和家禽科学的教育与研究，其研究领域包括动物饲养和遗传学、动物营养学、动物生理学、以及成长和代谢，动物福利、水产养殖、以及马的喂养和管理等。

Products available are: animal baby carrier, animal swing scooter, plush animal toys, animal garment, hats, scarf, backpack, waistband, animal-simulated decorative articles; as well as animal tissue box, sofa, clasp pillow, mat and rug, etc.

动物类商品专卖店，产品包括：动物童车，动物摇摆车，毛绒动物玩具，动物服装，动物帽子，动物围巾，动物挎包，动物腰带，仿真动物摆件，动物抱枕，动物沙发，动物纸巾盒，动物垫子，动物地毯等。

In order to construct the teaching models which are suited for the characters of students and the age and make the chemistry teaching perfecter we combine the multimedia network technology with the chemistry curriculum. The chemistry teaching which is carried out with the help of multimedia network technology is one important aspert in the study of middle school chemistry teaching.

因此通过将多媒体网络技术与化学学科课程进行整合，研究网络环境下的化学课堂教学，构建适应学生身心特点与时代特点的教学模式，优化中学化学课堂教学，是中学化学教学研究的一个重要方面。

Environmental chemistry is an intersectant subject by environmental science and chemistry. Its core problem is to study the chemical transformation and effect of chemical pollutant in environment. The research object of environmental chemistry is a complicated system with many components and mediums. The content of chemical pollutants researched by environmental chemistry is very low. These chemical pollutants distribute extensively, move and transform quickly, and have obvious dynamic change under different space-time conditions.

环境化学是环境科学与化学的交叉学科，它的核心问题是研究化学污染物在环境中化学转化和效应；环境化学研究的对象是一个多组分、多介质的复杂体系；环境化学所研究的化学污染物在环境中的含量很低；化学污染物分布广泛，迁移转化速度较快，在不同时空条件下有明显的动态变化。

After discussing and analyzing these above conclusions, we put forward some pointed countermeasures: expedite the educational reforms, improve chemistry academic motivation of the high school students; change the concepts of education and culture in a practical way, raise and stimulate female students" chemistry academic motivation; follow the law of high school students" law of somatopsychic development, put forward innovative strategies to raise and stimulate students" chemistry academic motivation; try to rise students" chemical academic record,promote middling students optimize and poor students convert; try to alleviate the students" pressure, promote the comprehensive development of the students; make overall plans and take all factors into consideration, enhance the high school students" chemistry academic motivation all sidedly.

本研究在对以上结论讨论与分析的基础上提出了有针对性的建议：加快推进教育改革，进一步提高中学生化学学习动机；切实转变教育观念，培养和激发女生的化学学习动机；尊重中学生的身心发展规律，提出创新性的培养和激发策略；努力提高中学生化学学习成绩，促进中等生优化和差生转换；努力缓解学生压力，促进学生全面发展；统筹考虑多个因素，全面提高中学生化学学习动机。

Article 60 Whoever drives an animal-drawn cart shall use a domestic animal; when driving an animal-drawn cart to cross the road, the driver shall get off the cart to lead the animal; and shall tie the animal up when he leaves the vehicle.

第六十条驾驭畜力车，应当使用驯服的牲畜；驾驭畜力车横过道路时，驾驭人应当下车牵引牲畜；驾驭人离开车辆时，应当拴系牲畜。

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？