By analyzing its structure and working principle, it proves that the new circuit has little pollution to the network and has well characteristic of the output voltage.
通过简单分析该主电路的结构形式和工作原理，证明它是一种对电网污染少、整流输出电压特性好的焊接电源主电路形式。
Due to the need of hydraulic transmission oil source, the structure is relatively large and complex, and there is a certain pollution to the environment.
由于液压传动需要油源，结构相对庞大和复杂，且对环境有一定污染。
The uncertainties come from synthetic action of input and output structure, investment of pollution control, environment policies, etc.
这种不确定性主要来自于经济的投入和产出结构、污染治理投入和环境政策等因素的综合作用结果。
Unoptimized energy structure and energy waste are among the major causes of severe air pollution.
不合理的能源结构以及能源的严重浪费则是造成我国大气污染严重的主要原因之一。
The application of the bio-mass energy is very significant to improve the energy structure, guarantee the energy safety and reduce the environmental pollution.
生物质能源的应用对于改善我国的能源结构、保障能源安全、降低环境污染具有十分重要的意义。
Such a tunable laser in the detection of atmospheric pollution, physical structure, research and laser spectroscopy in very useful.
这种可调谐激光器在检测大气污染、物质结构的研究以及激光光谱学中都很有用处。
From systematical point of view, analysis is made on the formation, structure of lakes and the reason of lake pollution.
从系统的角度，对湖泊的组成、结构，湖泊污染形成的原因进行了分析。
The article discussed under the breeze weather in the city street canyon air pollution concentration's relationship with the pavement temperature, street space structure and wind et al.
论述了微风条件下城市街道峡谷中的大气污染浓度变化与路面温度、街道空间结构及风等的关系。
The common gear pump has such merits as simple structure, low cost, insensitive oil pollution, etc. but it has such demerits as high flow pulsation, unbalanced radial force, strong noise, etc.
普通齿轮泵具有结构简单、成本低、对油液污染不敏感等特点，但具有流量脉动大、径向力不平衡、噪声高等缺点。
The structure and application scope of an air pollution measurement system are introduced, and it is mainly described the application and feature of industrial workstation in the whole system.
介绍工业污染源大气污染物排放连续监测系统的系统结构和应用范围，重点讨论一体化工作站在此系统中实际应用和性能特点。
From the viewpoint of resource demand, ocean multi-wave exploration is a useful technology to resolve the difficult problem just as blur zoon, structure distortion and gas pollution etc.
从我国油气资源来看，海上多波地震是解决海底模糊带、构造变形和气污染等问题的有效技术。
The current transformer is totally-enclosed casting of epoxy resin with support type structure. It is resistant to pollution, damp - proof and it is suitable for tropical regions.
本型电流互感器为支柱式结构，采用环氧树脂全封闭浇注，耐污染及潮湿，也适宜于热带地区。
Petroleum pollution brings a great danger to ocean fishery resource, destroy the natural structure of soil and affect the ecological balance.
石油污染给海洋资源带来极大的危害，破坏土壤结构和生态平衡。
Coal is the most important part of energy structure and the natural surroundings in poor dispersion of pollutants in the air are the main reasons for serious pollution in Lanzhou urban.
以煤为主的能源结构和不利于污染物扩散的自然环境是兰州市区大气污染严重的主要原因。
The structural pollution of Jiangsu was analysed in terms of industrial structure and technical structure.
从行业结构、技术结构等方面对江苏省结构性污染进行剖析。
Only the change of energy structure, the good use of natural gas liquidized gas and water power and the reduction of coal with the content of s can we prevent acid rain pollution in Wanzhou District.
只有改变能源的结构组成，充分利用天然气资源、液化石油气、水电资源，减少含s煤的使用，才能消除酸雨对万州区的污染。
Because the industrial structure, the economy rate of rise, an environmental pollution area economy growth quality also has the tremendous influence.
产业结构、经济增长速度、环境污染对一个地区经济增长质量也具有较大的影响。
Based on varying trends of populations, economy, and fuel structure in HUHHOT, atmosphere pollution stiation in 2010 year are prognosticated.
根据呼和浩特市人口、经济和燃料结构的变化趋势，预测了2010年污染物排放情况；
To research the properties of pore structure in soil has great practical significance in preventing and curing soil erosion, environment protection, reducing pollution of ground water and so on.
研究土壤表土孔隙结构特征对于我国区域土壤的侵蚀防治、环境保护和减少地下水污染等问题均具有重要意义。
It adopts closed structure to avoid pollution of dust.
整体密封结构，避免空音灰尘的污染。
Activated carbon materials are used in air pollution treatment because of their rich porous structure and higher specific surface area.
活性炭材料因具有丰富的孔结构和较大的比表面积，而被用于大气污染治理。
It is recommended to strictly control total pollution discharge, adjust industrial structure, emphases integrated water resources management and make joint for pollution prevention.
应采取严格排污总量控制，调整产业结构，加快污水厂建设，强化水资源统一管理，改进污染联防等措施。
Several basic hypotheses have been supposed, and model of structure description of transboundary water pollution is brought forward combining the Chinese circumstances.
结合我国流域的非畅流特点，提出了污染物人工调控和污染物间接不影响等几个基本假定，构建了流域跨界水污染结构描述模型。
Introduce the components, structure, working principle, using methods, caution note and examine period of pollution extent.
简要介绍了该车的组成、结构、工作原理、使用方法和注意事项以及污染度检查周期。
Compared to physical and chemical remediation, phytoremediation has many merits, such as lower cost, maintain the original structure of soil, less possible to cause secondary pollution.
植物修复技术具有物理、化学修复方法所无法比拟的费用低廉、不破坏场地结构、不造成地下水的二次污染等优点。
The community structure and function of soil fauna in ecosystems received severe negative impact with the increasing population, soil degradation and environment pollution.
随着人口的增长、土壤的退化以及环境的恶化，各种生态系统中土壤动物的结构与功能受到严重的干扰。
This paper mainly introduces the technical flow-chart, the structure of the well and the preventative monitoring of groundwater pollution, and provides some suggestions on the use-of this method.
本文主要介绍该项工艺流程、曝气井结构和地下水污染监测，还提出使用曝气井的几点看法。
This paper mainly introduces the technical flow-chart, the structure of the well and the preventative monitoring of groundwater pollution, and provides some suggestions on the use-of this method.
本文主要介绍该项工艺流程、曝气井结构和地下水污染监测，还提出使用曝气井的几点看法。
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