In sparkle discharge ,following conclusions could be reached:(1) overall spectral intensity in nitrogen is lower than in oxygen . When water is added, integrality light intensity is lower compared with the pure gas condition.(2) No matter it is nitrogen or oxygen, when water is added, syllabify three spectral lines of atomic H: Hα(656.3nm), Hβ(486.1nm), Hγ(434.0nm) could be seen. What is more, when water is added into oxygen, the spectral line of H atom becomes stronger.(3) When discharge in pure nitrogen, the light intensity falls with the increasing gas flow rate. While if water is added, the light intensity will rises with the increasing gas flow rate.(4) When discharging in pure oxygen, the light intensity rises with increasing gas flow rate. While if water is added, with increasing gas flow rate the light intensity initially will change as this:first rise, then saturate at about 140l/h, finally falls.

在火花放電中：(1)氮?dú)獾恼w光譜強(qiáng)度要弱于氧氣的整體光譜強(qiáng)度丝袜国产自在线拍AV，加水時(shí)的整體光譜強(qiáng)度比純氣體中放電小很多；(2)無(wú)論所通為氮?dú)饣蜓鯕?9久久久无码国产精品动漫，加水時(shí)可以清晰的看到Hα(656.3nm)国产精品美女妓女网站，Hβ(486.1nm)，Hγ(434.0nm)三條氫原子的譜線欧美老妇被操，而且在氧氣加水的情況下產(chǎn)生的H原子的譜線要強(qiáng)些999一级黄片；(3)純氮?dú)庵蟹烹姇r(shí)隨著氣流量的增大放電光譜的強(qiáng)度隨之降低，氮?dú)饧铀烹姇r(shí)隨著氣流量的增大放電光譜的強(qiáng)度隨之升高另类视频图片；(4)氧氣放電時(shí)免费观看未18禁止网站国产，隨著氣流量的增大免费视频福利，放電光譜的強(qiáng)度隨之升高，氧氣加水中放電時(shí)隨著氣流量的增大伊人久久大线影院首页，放電光譜的強(qiáng)度開(kāi)始隨之升高操操日日日操，在140l/h時(shí)的值最高，接著就開(kāi)始下降久久国产一区精品免费观看。

The water-saving technologies in field are researched and concerned relatively weak,especially in the water deficit conditions,how to utilize the synthesis effects of water and fertilizer,increase the efficient utilization of soil water in saline soil,which are researched unprofound,the mechanism unclear,cant adapt the time requirements of agricultural water-saving.

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Results show that the water environment of the upper Huangpu River is affected integratedly by land use and flow from the upper reaches; river water quality is negatively related to proportion of industrial land in the sample zones; and the water quality at the water catchment near the Songpu Bridge is closely related to the water quality of the flow coming down from the upper streams, and driving forces of change in land use, such as development of the industry and population density in the waterhead region.

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Parviflora in shrub communities had the xeromorphic traits in the aspects of ① their secondary xylem had shorter vessel elements, higher vessel frequency, less single porous percentage, lower rays, higher relative conductivity and lower vulnerability index, and ② their leaf had lower water potential, lower water content and free water content, higher bound water content, high ratio of bound to free water content, and less specific leaf area.

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It has a positive effect on the planning, the economic analysis and the management method of changing the resource of water supply from mainly groundwater (75% of total water supply) to a uniform distribution of surface water, ground water and desalinated water (1/3 of each).

該地區(qū)從以地下水為主的供水方式国产成_人__亚洲_国产，改變?yōu)榈乇硭⒌叵滤分奕毡频缬啊⒑Ｋ髡?/3的供水方式的規(guī)劃思想熟女淫乱性爱视频网、經(jīng)濟(jì)分析以及管理措施具有積極的參考意義。

It is the common phenomenon that the industry wastewater is treated to be reused water, new industry water, desalted water, soft water or pure water for industrial production.

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It is the common phenomenon that the industry wastewater is treated to be reused water, new industry water, desalted water, soft water or pure water for industrial production.

節(jié)能減排是鋼鐵企業(yè)水系統(tǒng)所追求的目標(biāo)，將工業(yè)污水收集后處理制成回用水好男人社区WWW资源、工業(yè)新水久久精品免费少妇高潮特黄、脫鹽水、軟化水或純水等用于生產(chǎn)涩涩视频一区二区三区，是目前鋼鐵企業(yè)回用工業(yè)污水免费视频在线观看10000网站视频、實(shí)現(xiàn)污水資源化的常見(jiàn)方式。

The quality of central water supply in town is relatively good the qualified rate of central water supply in village and its school and kindergarten drinking water are still low as the free chlorine residuals in the water could not meet the standard which was the main reason of excessing microorganism of drinking water.

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That's where water treatment comes into the picture. A water treatment plant purifies the water by adding coagulant that precipitate impurities and particles in the water, allowing it to be flocculated and filtered. Chlorine is then added as a disinfectant before it can properly be called "tap water".

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