The pollution of the city is heavy,as result of much more air form the car,the afforest can decrease the air pollution.

城市污染嚴重是由于過多的汽車排放造成的在线观看亚洲精品国产AV，綠化能減少空氣污染人妻精品久久无码专区久久。

On May 12, through the construction that broad ginseng builds unit last a period of time more than one year, company of golden plain group the key is energy-saving 2008 the environmental protection that decrease a platoon tackles key problem project " contain enlarge of station of sewage disposal of heavy metal ion to be able to transform a project " affusion trial run is successful, each technology index achieved production to design craft requirement, the mark is worn the company reclaims in sewage processing use on the one pace that stepped materiality.

5月12日jiujiurejingpin，經(jīng)過廣大參建單位歷時一年多的建設(shè)www26uuu.com，金川集團公司2008年重點節(jié)能減排環(huán)保攻關(guān)項目"含重金屬離子污水處理(通過物化方法去除水中一些物質(zhì)的過程)站擴能改造工程"注水試車成功，各項技術(shù)指標達到了生產(chǎn)設(shè)計工藝要求6080三级片免费，標志著公司在污水治理回收利用上邁出了實質(zhì)性的一步欧美一级黄色性爱片。內(nèi)容來自www.ch-water.com

UV-C irradiation could restrain the afterripening of Coprinus comatus and inhibit the activity of polyphenol oxidase during storage, accordingly reduce its respiratory strength, minish membrane permeability and delay browning reaction, especially decrease the stipe elongation rate effectively, thereby prolong its fresh-keeping time.

UV-C照射能夠抑制雞腿菇在貯藏期間的后熟作用，降低多酚氧化酶活性亚洲乱伦图片小说视频网，從而降低雞腿菇的呼吸強度αV在线视频，減小細胞膜透性，延緩褐變反應亚洲日本欧美中文中韩，尤其能有效地抑制菌柄伸長AV毛片免费久久久久性色，從而延長雞腿菇的保鮮時間。

The result showed that Limnanthemun nymphoides can apparently decrease the concentrations of total nitrogen and total phosphorus in overlying water, control the growth of agal and improve water quality.

結(jié)果表明国产原创同事在线视频，在培養(yǎng)實驗過程中日韩一级黄片一区二区，荇菜生長使上覆水體中的氮、磷營養(yǎng)水平逐漸降低，藻類的生長明顯受到克制欧美一级特黄AAAA片免费，水體透明度增加wwww性，水質(zhì)逐漸改善。

Soil erosion is one of the most important ecological environment problems in our country, which results in land resource destroy, soil degradation, land productivity decrease, water pollution, river and water storage works aggradation, flood, avalanche, mudrock flow and menace to the life and wealth of people, and so on.

土壤侵蝕問題是目前我國面臨的主要生態(tài)環(huán)境問題之一播播理论视频，嚴重的水土流失不僅破壞土地資源在线黄片观看、降低土壤肥力91福利在线、制約糧食生產(chǎn)增長亚洲欧美激情国产综合久久久，還污染水環(huán)境、淤積河道和蓄水工程欧美精选视频在线免费观看，導致洪水丝袜美女国产av、崩塌和泥石流等災害頻繁發(fā)生、威脅人民的生命財產(chǎn)等全国最大黄色网站视频。

And it has given the effects of the all factors on the runoff by 1D river networks mathematical model. Due to the natural and artificial influences, the water-sediment transport has greatly changed. It is characterized by marked decrease in runoff and sediment diverted from these outfalls and increase in water-sediment transport of main stream. The key factors causing these changes are aggradation of the three outfalls channels and Jingjiang river cutoff work.

結(jié)果表明国产在线a片高清，受自然因素和人為因素的影響，荊江－洞庭湖江湖水沙輸移有了較大調(diào)整變化色色色色色色色色色色五月天，主要表現(xiàn)為三口分流分沙大幅度減小幸福宝app官网大全，干流水沙輸移增加；江湖關(guān)系變化的主要因素是三口分流道的淤積萎縮和荊江裁彎91短视频在线。

50Mmol/L NaCl stress had no influence on level of ATP in root of Ginkgo andAilanthus.Level of ATP in roots of Ginkgo,Ailanthus and Robinia decreased greatly under200mmol/L NaCl stress.The extent of decrease of ATP level accord to plant salt tolerance:Ginkgo is more salt tolerance,and ATP decreases more slowly than that of Ailanthus andRobinia.

11.50mmol/L的NaCl脅迫沒有引起銀杏和臭椿根尖ATP水平的明顯改變日批免费视频网站；200mmol/L的NaCl脅迫引起銀杏、刺槐和臭椿ATP水平指數(shù)性的衰減偷窥综合网，ATP的下降幅度的變化與植物耐鹽性一致：耐鹽性強的銀杏自拍偷拍操B视频，ATP的下降幅度明顯比刺槐和臭椿小。

Ginkgo is more drought tolerant,and maintain relatively higher Pn under drought;Robinia pseudoacacia is less drought tolerant,and Pn decrease greatly under stress;Ailanthus altissima is placed in the middle.

耐旱能力較強的銀杏在干旱脅迫下維持較高的光合作用a片在线观看资源；刺槐的抗旱能力最弱久久免费看黄视频，光合速率下降幅度最大，臭椿居中欧美亚洲性交短视频。

Moreover, the air flow-rate influences the cell temperature, and increasing the flow-rate makes the cell temperature decrease and poise.

另外亚汌人成伊人成综合网222，空氣流速也會對電池的工作溫度產(chǎn)生影響，流速越快国产久精品A片，帶走的熱量就越多日本特级特黄aaaa大片，電池的」磺只谙吖劭矗總體溫度就越低越均衡操我视频。

In order to decrease the vertical vibration of rolling stock, the air springs with variable damping oil dampers inside are developed.

為降低鐵道車輛的垂向振動，開發(fā)了內(nèi)置可變阻尼油壓減振器空氣彈簧亚州激情婷婷六月。