查询词典 water main
- 与 water main 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The wavelet variance verification also indicates that the first main period of the runoff of mountainous watershed in the Shiyang River Basin is 30years, and 22years and l5years are the second and third period respectively; 3 Then we also compared the total runoff of mountain watershed with climate factors of Wushaoling which station is in the mountain headstream area, such as precipitation and temperature, the data record that the correlation coefficient of annual runoff and precipitation variation over the upper reaches in the Shiyang River Basin is 0.61 ,which indicates precipitation is the main water recharge of the runoff.
石羊河流域出山口年径流的周期变化与乌鞘岭站年降水量和年均气温周期基本上都能在同一周期上下浮动,其中出山口年径流量与乌鞘岭山区年降水量相关系数为0.61,说明地表径流量主要是由山区降水补给;年径流量与山区年均气温变化呈0.28的反相关,说明该流域近50年来出山口径流与山区气温呈反比,即径流量随年均气温上升而减少,相关性暂时不十分明显。
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The result shows that: aquicultural waste water discharge respectively account for 75.1% of total nitrogen and 63.5% of total phosphorus; subsequently, the second main source of nitrogen and phosphorus is Domestic Sewage and Industrial Sewage drainage, which respectively equals to 20.5% and 30.7% of total nitrogen and phosphorus; in addition, farmland is not the main source, and only contributes to 4.4% of total nitrogen and 5.8% of total phosphorus.
结果表明,盐城海岸带主要陆源污染源中,养殖水域氮磷排放总量为7641t和480t,分别占排放总量的75.1%、635%;其次为居民工矿的生活生产污水,其氮磷排放量为2083t和232t,占总排放量的20.5%、30.7%;农田目前看来不是盐城海岸带主要的陆源污染源,排放量仅占4.4%和5.8%。
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And meanwhile, the result show that, stomatal restriction was the main factor of the net photosynthetic rate's decrease in the leaves of 4 Dactylis glomerata L. when stress in slight water stress and the non-stomatal restriction was the main factor of the net photosynthetic rate in the leaves of 4 Dactylis glomerata L.
盆栽控水条件下4份鸭茅光合作用机理的研究表明,随着干旱胁迫程度的加强,4份鸭茅种质的净光合速率、蒸腾速率、气孔导度及叶绿素含量均有较大幅度的降低,其中抗旱性强的ZXY04P-201下降的速度慢,幅度小,而抗旱性差的ZXY04P-239下降速度快,幅度大。
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The paper firstly analyses the present condition and development plan of Guangzhou port, especially Nansha Terminal, states the actual situation of the fire fighting vessel in Guangzhou port, illuminates the necessity of building the fire float and researches the hydrometeorological position of the Nansha Terminal water area. In this paper, the present main types of fire floats and the technical feasibility of the chosen vessel are amply analyzed. Moreover, the primary scheme is brought forward and the economic technical capability research is finished. After comparing with the primary scale and optimizing main engine type, the paper tables a proposal for a basic design model and confirms the debriefing.
本文首先分析了广州港尤其是南沙港的现状和发展规划,对广州港消防船的现状进行分析,阐述了南沙港区建造消防船的必要性,对南沙港水域的水文气象情况进行了调研,对当前主要消防船型进行分析,对所选船型的技术可行性进行了研究分析,提出初步方案,并对方案的技术经济性能进行研究,通过对主尺度和主机选型等进行比较优化后最终提出初步的设计方案模型。
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Results Nine compounds from supercritical CO2 extraction were identified and the main constituents were pentadecane, ethyl pmethoxycinnamate and ethyl cinnamate. Twentyeight compounds from water distillation were identified and the main constituents were δ3carene, ethyl pmethoxycinnamate and ethyl cinnamate.
结果 沙姜超临界CO2萃取物中分离鉴定出9种化合物,主要成分为十五烷、肉桂酸乙酯、对甲氧基肉桂酸乙酯等;水蒸气蒸馏法中分离鉴定出28种化合物,主要成分为δ3蒈烯、肉桂酸乙酯和对甲氧基肉桂酸乙酯等。
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Results Nine compounds from supercritical CO2 extraction were identified and the main constituents were pentadecane, ethyl p-methoxycinnamate and ethyl cinnamate. Twenty-eight compounds from water distillation were identified and the main constituents were δ-3-carene, ethyl p-methoxycinnamate and ethyl cinnamate.
结果 沙姜超临界CO2萃取物中分离鉴定出9种化合物,主要成分为十五烷、肉桂酸乙酯、对甲氧基肉桂酸乙酯等;水蒸气蒸馏法中分离鉴定出28种化合物,主要成分为δ-3-蒈烯、肉桂酸乙酯和对甲氧基肉桂酸乙酯等。
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The random errors of main factors in flood regulation process are identified; and combining flood forecast, the randomnesses of main parameters such as initial reservoir level, inflow flood, outflow flood, etc., are analyzed. By using the first order second moment method and theoretic distribution, the random distributions of parameters are described then the routing process of a certain preflood limit water level is random, which can well reflect the random preflood influences in actual regulation.
对防洪调度过程各主要相关参数进行了随机误差识别,结合洪水预报对起始水位、人库洪水、泄流等主要参数的随机性进行分析,应用一次二阶矩法和相应的理论分布函数描述事件的随机分布,对应某一汛限水位的调洪过程不再是一确定过程,而是具有随机分布特性,反映了实际防洪调度中各随机因素的影响作用。
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But at the same time,itexisted in the fact that the water environment was amended,showingthat many lakes and ponds such as Hong Jiannuo Lake appearing andexpanding in the end of Qing dynasty.4.The vegetation in Mu Su Desert passed through several phases inhistorical times,the main phases are:the species composition ofvegetation community was gradually simplified;xeromorphous and sandyplant increased;the status of desert vegetation rose evidently.However,the change of vegetation zonation means that forest plainchanged into drought plain did not occur.5.The main modality of Mu Su Desert land degenerating has beendesertification,it had occurred before human activities intervenedintensively.Two-thirds of land has been desertification at variousdegrees.
但与此同时,也存在着局部的水环境改善,突出表现为红碱淖等湖沼在清末民初的出现和扩大。4、毛乌素沙地的植被在历史时期经历了群落种类组成渐趋简单、旱生沙生资源植物增加、荒漠植被地位明显上升等变化,但是并不存在由森林草原到干草原的地带性植被变化。5、沙漠化是毛乌素沙地土地退化的主要表现形式,在人类活动强烈干预以前就存在着,秦汉以来,有大约2/3的土地发生了程度不同的沙漠化。
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In shoaling process, the main peak frequency of broken wave spectra moves to lower frequency. With decreasing relative water depth, both the ratios of wave spectral energy at twice and triple peak frequency to main peak frequency increase. and when the value of the nonlinear parameter increases, both the ratios increase, too. The Stokes third order wave theory has the same tend but overestimates the value quantitatively.
波浪浅化时,碎波后主频频率有往低频移动之现象,且波浪进入浅水区,相对水深减小,非线性参数Ursell number越大时,二倍主频及三倍主频与一倍主频能量比值均有增加之现象,与 Stokes三阶理论有相同之趋势,但实验之比值在定量上小於Stokes三阶理论值。
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Main Product or Service: oilfield drilling mud materials; the type of phenolic resin; water treatment agent; insulation sealing materials; asbestos and its products, etc.; asbestos paper composite board; graphite composite paper board; efficient coal combustion; efficient sintering agent; lubricants; fungicides; Jiangnian sloughing agent; Main Industry: Other sewage treatment equipment; Bactericidal Algicide; other energy-saving equipment; cylinders and components; other cleaning, cleaning equipment; fire resistance, fire prevention materials
主营产品或服务:油田钻井泥浆材料;各型号酚醛树脂;水处理药剂;保温密封材料;石棉及其系列产品等;石棉纸复合板;石墨纸复合板;高效节煤助燃剂;高效烧结剂;润滑剂;杀菌剂;降粘防塌剂;主营行业:其他污水处理设备;杀菌灭藻剂;其他节能设备;气缸及部件;其他清洗、清理设备;耐火、防火材料
- 推荐网络例句
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For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether
年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。
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Eph. 4:23 And that you be renewed in the spirit of your mind
弗四23 而在你们心思的灵里得以更新
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Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.
老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。