查询词典 low water
- 与 low water 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Which shows that the grade of water resources development is badly low in Longhetun, measures of water development to diverse types of plowland according to the difference in south- or north-slope and the bottom of the depression.
结果表明龙何屯水资源的利用程度极低,存在洼地南北坡和洼地底的差异,提出针对不同耕地类型、不同作物种类的水分开发利用方式。
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Low voltage auxiliary transformer for circulating water pump house and general service water system.
循环水泵房和工业水泵房系统的低压厂用变压器
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The pollution of heavy metal was different. Concentration of Cu, Zn, Ni, Co were low and Pb, Cd were high, which only can reach the national surface water body quality standard Ⅴ(GB3838-2002).The restes of heavy metal were excelled water body quality standard Ⅱ.
阳离子以钙为主,阴离子以硫酸根为主;重金属中Pb、Cd含量高,各点位平均值仅能达到Ⅴ类水质标准(GB3838-2002),其余重金属浓度均优于Ⅱ级标准。
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The result indicated that, This variety resistance is strong, The sowing time meets arid long clearly does not have the rain the weather, The soil field capacity is 43.5%(normal soil field capacity 60%), the rain water is insufficient, Rate of seedlings emergence above 85%, Basically achieves seedling is much longer and stronger; Jointing later period trumpet-shaped object stage, Meets the continuous and incessant rains little clear climate, Suffers the water logging disaster, Soil field capacity reaches above 85%, Partial is low-lying place is flooded, But the corn growth is normal, Ye Sachem is green, The root system is developed, Has not discovered the rotten root phenomenon; Is pulling out, the spinning, the pollination stage male, Bitter experience hot summer crop damage and storm disaster, The corn normally pulls out the male spinning pollination to busload.
结果表明:该品种抗逆性较强,播种期遇干旱久晴无雨的天气,土壤田间持水量为43.5%(正常土壤田间持水量60%)、雨水不足,出苗率在85%以上,基本达到苗齐、苗壮;拔节后期喇叭口阶段,遇到久雨少晴气候,遭受水涝灾害,土壤田间持水量达85%以上,部分低洼处被水淹,而玉米生长正常,叶色深绿,根系发达,未发现烂根现象;在抽雄、吐丝、授粉阶段,遭遇伏旱及暴风雨灾害,玉米正常抽雄吐丝授粉结实,产量未造成较大影响,基本上达到常年稳产,每公项达到8400kg以上。
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The anode catalyst for direct methanol fuel cell is Pt-W-Sn/C, and it is prepared through dispersing carbon black in distilled water, adding H2PtCl6, tungstate and stannate, stirring to make the metal salt and H2PtCl6 adsorbed fully; dropping reductant to reduce and deposite until complete reaction; washing with distilled water, filtering and drying to obtain black C carried sanitary Pt-W-Sn catalyst. The catalyst has excellent methanol catalyzing activity and low cost, and its use can lower the cost of direct methanol fuel cell greatly and raise the performance/cost ratio of the cell.
一种直接甲醇燃料电池阳极催化剂是Pt-W-Sn/C;其制备方法是将碳黑分散在蒸馏水中,然后加入H2PtCl6、钨酸盐和锡盐,搅拌使得金属盐与H2PtCl6被充分吸附;逐滴加入还原剂使之还原沉积,待反应完全后,用蒸馏水洗涤,过滤,然后于干燥箱中干燥,便得到黑色的C负载Pt-W-Sn三元催化剂;该催化剂具有很好的甲醇催化活性,价格低廉,可以大大降低直接甲醇燃料电池的成本,提高电池的性能价格比和市场竞争能力。
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The process of frequency fluctuation in the hydropower station with surge tank is impacted both by high-frequency water pressure wave and low-frequency water level fluctuation in surge tank.
在负荷变化和扰动过程中,设调压室水电站机组频率受到压力管道内水击压力波和调压室内水位波动的共同作用。
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Another situation is in order to reduce material costs and adopt only 330-molecular-weight natural Rosin, in order to achieve-and-ink system stability, in recent years, we have dozens of chemical properties caused by not changing inorganic materials, use of the tetrahedroid of hydrated silicon dioxide as a porous form of assiociation matozoa, a steady and adsorbed on low molecular weight of rosin Sol heterogoneous on the surface, forming a layer, the Pro-numberrepresentationof goes with liquid water, addresses the thixoforming improve its water washable, and has a certain thickness, especially when more than 5 per cent, packaging business card printing and membership card by making the formation of a layer of short thick membrane of lowmolecular of monlchamus, in which case it reduce-and-Ink viscosity, increase the concentration would affect the business card printing and membership card to make the mobility of transfer affects gloss, the reason is that in the process of associating exothermic rise ink system temperature diminishes the Rosin molicule assiociation.
另一栽境况是:为了贬矮质料不败本,合座拔取仅有330不合子量的人造松香,为到达火不朱编制不时间的安定性,近年来,我们在数不一栽不引起冻学本质保持的不不不不无机质料洋,诳骗四面体的火合二氧冻硅的多孔形式作为缔合胶体,使之能安定不天吸附在矮不合子量的松香溶胶粒子的暗不天上,形不败一层爱护膜,把干液性基团伸向火洋,既可打消触变又能提矮其火可洗性,并具有必定的厚量,格边是当超功5%之后,包装制卡和会员卡制作的不朱膜形不败了一层长稠厚的矮不合子不朱膜,这时则更会贬矮火不朱粘量,如果补充了浓量,则既会感冻制卡和会员卡制作迁徙的流动性,又会感冻平泽的提矮,来因是:在缔合放热的历程洋升矮了油不朱编制温量而放松了松香不合子的缔合方向。
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According to the international standard ISO7027,we can know that the measurement of turbidity mainly use the optical turbidimeter measurement,it contains the scattering-light method and transmitted-light method. The scattering-light method has application in measurement for low turbidity water and also can used in high turbidity water.On the other hand,the transmitted-light method is more suitable for high turbidity measurement.
根据国际标准ISO7027可知,现今测量水的浊度主要以光学浊度仪测量法为主,主要包括散射光法和透射光法两种,散射光法主要用于测量低浊度水,但也可用于高浊度水的测量;而透射光法更适合于测量高浊度水。
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Recently, ozone has been widely used in medicine, vivers, chemical industry, air decontamination, sewage disposal and drinking water sterilization. It shows good future for low re-polluted productions when used in water disposal.
近年来,臭氧技术已在污水处理、医学、食品、化工生产、空气净化、饮用水杀菌消毒等领域得到广泛应用,并显示出很好的发展前景。
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Such a viewpoint of the effects of a little water addition has never been reported, it opened a new way to product SWCNTs with high purity and low cost. On the ground of the experimental results and mechanism studies, a little water addition may open a way for using the natural gas as carbon source to manufacture SWCNTs. By analyzing XRD, XPS results and with comparative experiments, we concluded that the active phases of SWCNTs growth in Ar were small Fe particles. A little W species can improve the surface characters of support and increase the dispersion of Fe particles, but higher W loading will cause large quantity of WC, which decompose CH〓 to amorphous carbon.
本文根据W-Fe-MgO催化剂中间产物和粗产物的XRD、XPS测量结果,结合制备实验和对比实验指出:在Ar中1073K下,生长SWCNTs的活性相是Fe的小颗粒,少量W在催化剂中以氧化物形式对载体表面改性,起提高Fe分散度的作用,但W浓度过高时在反应过程中会生成大量WC,又会催化CH〓分解为无定形碳,造成产物中SWCNTs含量下降。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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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。
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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