主要
- 与 主要 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
We Investigated the species of diseases and insect pests, species of natural enemies, distribution and dominant species in export vegetable bases in Shandong Province. Dynamics of main diseases and insect pests were studied.2. We investigated the main control technologies for diseases and insect pests, types and application methods of pesticides.3. Effects of crop varieties, fertilities and cultivation on diseases and insect pests, production and pesticide residues were examined.4. Control effects and application technologies of frequency trembler grid lamps, greenhouse ozone machine and insect-proof net were tested.5. By research, seven biological preparations and twelve chemical pesticides with high activity, low toxicity and low residue were screened.
主要结果如下:1查清了山东省出口蔬菜基地蔬菜病虫害发生种类,天敌种类、分布、并评价上风种;探明了主要病虫发生消长规律。2查清了山东省出口蔬菜基地目前病虫害防治的主要应用技术、施药种类及主要施药方式。3明确了作物品种、肥力、栽培方式等农业措施对病虫发生、产量和农残的影响。4明确了频振式杀虫灯、温室病害臭氧防治机、防虫网等物理措施防治效果及其应用技术。5通过实验,筛选出7种生物制剂和12种安全有效低毒低残留化学农药品种。
-
Rice bran wax to fatty acids and senior wax mainly composed of alcohol, fatty acids are palmitic acid (C16), Gan II acid (C22), wood wax acid (C24), wax acid [26 acid] (C26) and other major components of wax alcohols have wax alcohol (C26), different serine alcohol wax, beeswax alcohol (C30), etc.; also contains alcohol to beeswax (C30), wax alcohol, alcohol wax for different serine The main constituents of unsaponifiable matter and a number of free acid mainly palmitic acid is brown, trace of alcohols, 30, such as carbon six elemene liposome.
米糠蜡以脂肪酸和高级蜡醇为主要成分,脂肪酸中有棕榈酸(C16)、甘二烷酸(C22)、木蜡酸(C24)、蜡酸(C26)等主要蜡醇成分中有蜡醇(C26)、异丝氨酸蜡醇、蜂蜡醇(C30)等;另外还含有以蜂蜡醇(C30)、蜡醇、异丝氨酸蜡醇为主要成分的不皂化物及若干游离酸(主要是棕是棕榈酸、微量醇类、三十碳六烯脂质等。
-
The main components consist of network,cluster of norms,values and expectancies that are shared by group members,and sanctions-punishments and rewards that help to maintain norms and network.The levels of analysis includes micro-level,meso-level and macro-level.The sub-types of social capital include bonding sub-type,bridging sub-type and linking sub-type.Based on the brief introduction to the conception and the main dimensions,the author gives a commentary summary of the research...更多 progress of the relationship between social capital and economic growth,environment impact,then illustrates the mechanism of social capital promoting economic growth and influencing environment,analyzes the relationship between the social capital and the adaptative ability,and briefly introduces the framework of understanding and studying the interaction and inter-influence between the social system and the key resource.
本文阐释了社会资本概念,分析了社会资本的主要成分、分析层次及主要类型等维度,指出社会资本的主要成分包括网络、规范、制裁,分析层次包括个体、中观、宏观,主要类型包括结合型、沟通型、联系型;在此基础上,梳理总结了社会资本与经济增长及环境影响关系的国际研究进展,阐释了社会资本促进经济增长、影响生态环境的作用机理,分析了社会资本与适应能力的关系,简要介绍了国际上理解和研究社会系统与关键资源之间的相互作用和影响的思想框架。
-
Moreover, according to element compositions in mussels, these fishes were divided into three groups. The first group was characteristic with low phosphorus and high C/N ratio including Engraulis japonicus, Conger myriaster and Scomberomorus niphonius. The second had low phosphorus and low C/N ratio including fishes such as lower and middle carnivores such as Pseudosciaena polyactis, Platycephalus indicus and Argyrosomus argentatus. The third included some cold temperatefishes such as Scomberomorus niphonius and Liparis tanakae that were high phosphorus and low C/N ratio.
此外,根据鱼类的肌肉元素组成,将鱼类分为3类:第一类的主要特征为低磷、高C/N比值,主要包括鳀鱼、星康吉鳗和带鱼;第二类种类最多,主要包括小黄鱼、鲬和白姑鱼等中、低级肉食性鱼类,其元素组成特征为低磷、低C/N比值,;第三类的主要大泷六线鱼、细纹狮子鱼等冷温性鱼种为主,元素组成特点为高磷、低C/N比。
-
Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows:①reviewed entirely the origin and evolvement of the concept "sustainable development", stated and commented the study status in queue on"sustainable development"around national and international range, thorough discussed the science connotation about the concept "sustainable development";②looked back and commented across-the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings;③expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory;④thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the MATLAB software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the B-J method and Morte-Carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources;⑤synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming, mathematical statistics, random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality;⑥analyzed the inside condition and outside condition to assure the sustainable and optimum exploitation of groundwater resources, the inside conditions are the follows: correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows: the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water-saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology;⑦scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy;⑧point out the more directions on groundwater resources.
它将为制定水资源的可持续发展目标和战略决策提供科学依据,为制定社会、经济可持续发展战略提供理论基础。基于以上考虑,论文主要从以下几方面对地下水资源可持续开发问题进行了比较深入的探讨:①全面回顾了&可持续发展&概念的由来与演变,对国内外&可持续发展&的研究现状进行了述评,并对&可持续发展&概念的科学内涵进行了深入探讨;②对涉及地下水资源的一些最基本的概念和命题进行了全面的回顾和评述,对目前仍然存在的一些错误观点和混乱认识提出了自己的见解;③全面阐述了地下水资源变值系统理论的内容和意义,并与传统的地下水资源计算评价方法进行了对比分析,结合实例具体说明了方法的应用;④深入分析了地下水资源预测预报工作的极端重要性和复杂性,对传统的地下水资源动态预测方法进行了全面的评述,指出了各类预测预报方法的特点及适用条件,对最近二十多年刚发展起来的小波分析技术的主要思想和方法及其应用范围,以及号称第五代计算机语言的MATLAB软件和附带的小波分析工具箱进行了介绍,并应用于地下水动态过程线的分析,采用时间序列中的B-J法,蒙特卡罗方法,与地下水资源变值系统理论相结合,探讨了地下水动态资料分析和地下水资源预测预报的新思路;⑤综合分析了现今各类地下水管理模型的特点及缺陷,将数学规划、数理统计、随机过程等与地下水变值系统理论相结合进行地表水地下水或多水源的联合优化调度,使模型更准确、更实用;⑥对保证地下水资源可持续开发的内部条件和外部条件进行了分析,内部条件主要是正确的资源观,科学的资源计算与评价方法,可靠的资源预测预报技术,可操作的资源管理措施,外部条件主要是高层发展思路、管理体制的变革、配套的政策法规、经济杠杆的调节、人文素质的提高、节水意识的增强及具体节水措施、人口增长的控制、水体污染的防治、生态的恢复和重建等;⑦从宇宙科学、地球系统科学及哲学的高度审视地下水资源的可持续开发;⑧指出了地下水资源可持续开发的进一步研究方向。
-
Firstly,the scenery characteristic of the riverside region is summarized,history retrospect,and the nature of this research field objectively and historically grasped. Secondly,an extensive analysis on the three major problems of the status of riverside environment,including the bioecological problem,the social problem and the economical,also sustainable developmental problem,is performed. Finally,the solution to these problems is derived from analysis,which consists of five major aspects,i.e. civil planning strategy,architectural scenery strategy,greenbelt scenery strategy,riverbank scenery strategy and roadway scenery strategy.
首先通过对滨江地带景观特色的总结、历史沿革的回顾,获得对研究领域的较客观的、历史的把握;其次重点分析当前滨江地带环境景观的现状问题,这些问题主要分为生态环境问题、社会问题与经济发展问题三个主要方面;最后以分析的结果总结出解决以上问题的景观设计策略,这些策略主要分为规划设计策略、建筑景观策略、绿地景观策略、河堤景观策略与道路景观策略五个主要方面。
-
Firstly, the scenery characteristic of the riverside region is summarized, history retrospect, and the nature of this research field objectively and historically grasped. Secondly, an extensive analysis on the three major problems of the status of riverside nightscape, including the bioecological problem, the social problem and the economical, also sustainable developmental problem, is performed. Finally, the solution to these problems is derived from analysis, which consists of six major aspects, i.e. civil planning strategy, architectural nightscape strategy, nightscape strategy on the square, nightscape strategy of the business street, roadway nightscape strategy and greenbelt scenery strategy.
首先通过对滨江地带景观特色的总结、历史沿革的回顾,获得对研究领域的较客观的、历史的把握;其次重点分析当前的滨江地带也就是汉口江滩地带夜景观的现状问题,这些问题主要分为生态环境问题、社会问题与经济发展问题三个主要方面;最后以分析的结果总结出解决以上问题的夜景观设计策略,这些策略主要分为滨江地带夜景观的规划设计策略、建筑物的夜景观策略、广场的夜景观策略、商业街的夜景观策略、道路和桥梁的夜景观策略与绿地的夜景观策略六个主要方面。
-
To observe and measure the distance and angulation of some muscles such as flexor carpi ulnaris,extensor carpi ulnaris , flexor carpi radialis,extensor carpi radialis longus,extensor carpi radialis brevis, brachioradialis,etc,we achieved the moment of force and loaded them in the model .
测量8具新鲜成人尸体的前臂主要肌肉和韧带横截面积,分别取其平均值,通过横截面积的肌力计算法,求得肌力和韧带力。主要肌肉为肱桡肌、桡侧腕长伸肌、桡侧腕短伸肌、尺侧腕伸肌、尺侧腕屈肌、桡侧腕屈肌等。测量的主要韧带为腕掌侧韧带、腕背侧韧带等。测量主要肌肉和韧带与坐标轴的夹角,求得分力值,然后直接或根据力矩等价原则间接地将肌力加载于模型体表各节点。
-
The tectonic rocks along the fault zone are composed of cataclastic rocks and mylonites formed in higher, middle and lower temperature. Respectively, both of structural features and rocks have the features of multiple phase's of deformation. The deformation features of main minerals in the high temperature mylonites show that: the quartz has the form of long single crystal and the fabric feature of point maximum near X axis; the feldspar has the form of recrystallization assemblage, They present a high amphibolite-granulite facies with temperature >600℃ and depth >20km. The deformation features of mylonites formed in middle temperature show that: the quartz has the form of polycrystal banding and the fabric feature of point maximum near Y axis and small circle girdle with Y rotational axis; the feldspar has the form of a coremantle structure, They reflect a high greenschist-lower amphibolite facies with temperature from 400℃ to 600℃ and depth from 15km to 20km.
其中,高温糜棱岩主要矿物变形特征组合为:石英为长矩状或长条状单晶、组构为近X轴的点极密,长石为几乎完全重结晶的集合体,形成温度>600℃,相当于高角闪岩—麻粒岩相,形成深度>20km;中温糜棱岩主要矿物变形特征组合为:石英为多晶条带、组构为近Y轴点极密和以Y轴为旋转轴的小圆环带,长石发育核幔结构,形成温度为400~600℃,相当于高绿片岩—低角闪岩相,形成深度为15~20km;低温糜棱岩主要矿物变形特征组合为:石英发育核幔结构、组构特征为近Z轴点极密,长石以碎裂为主,形成温度<400℃,相当于中低绿片岩相,形成深度为8~12km;碎裂岩则主要代表了地表浅层的变形。
-
Now, Flavonoids and ginkgolides were mainly extracted from the leaves of Ginkgo biloba., but the leaves often contain high content of corious and cereous, and the effective constituent is very different under the various conditions. In addition, the constituent of ginkgolides is very low in the leaves, and thus the quality of extraction is difficult to reach the international standards.
目前人们主要从银杏叶中提取银杏黄酮和萜内酯,但由于银杏黄酮和银杏内酯的含量很低,尤其银杏叶中最主要的有效成分银杏内酯B主要存在于根中,在银杏叶中含量极低(<0.1%),且是在生长状态的叶中含量最高,采叶影响树的生长;又因银杏叶中主要的有效成分受多种因素的影响又有很大差别,银杏叶革质化、蜡质化程度高,使得国内银杏叶提取物的质量很难达到国际标准。
- 推荐网络例句
-
The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
-
This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
-
The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力