查询词典 water level
- 与 water level 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The first part discusses about the effects of the five factors:temperature,relative air moisture,rate of frass sifting,density of larvae,fodder water percentage to growth speed and survival rate of older mealworm (Tenebrio molitor L.) larvae through rotational composite design of quadratic regression. Two models were established to describe the effects of the five factors. The models showed that percentage of fodder water is the major factor that has effect on the growing speed of T. molitor larvae,and fodder water is the major factor on death rate. The models also show that temperature on growth speed,temperature and fodder have important effects on death rate,and the significant test showed they have significant difference on 1% or 5% level. From the two models,by frequency analysis,we can get the optimizing rearing condition,in which the mealworm larvae overweight 10% per day,temperature is 25-26 ,frass sifting rate is once 2-4 days,density of larvae is 0.61-0.79 g/cm2,fodder water is 33.27%-39.71%. And the rearing condition,in which total death rate of T.
第一部分:采用五因素二次正交旋转组合设计,以黄粉虫幼虫饲养过程中饲养温度(X_1)相对湿度(X_2)、虫粪筛除频率(X_3)、饲养密度(X_4)以及饲料含水量(X_5)五因素为参试因素,考查它们对黄粉虫高龄幼虫的生长及存活的影响,建立了以黄粉虫幼虫增重率及死亡率为目标函数的回归模型,并进行了简化: Y_增=127.5079+18.6559x_5+2.7894x_3x_4-2.3854x_3x_5-3.0594x_1~2+1.8241x_3~2-3.8559x_5~2 Y_死=1.7459+0.4108x_1+0.0975x_2+0.9025x_4+0.3442x_5+0.0834x_1~2+0.3060x_4~2-0.2623x_5~2 分析结果表明:影响黄粉虫幼虫生长后期增重及死亡的主要因素分别为饲料含水量和饲养密度;饲料含水量和温度对黄粉虫增重有着重要的影响,饲养密度、温度、饲料含水量对黄粉虫的死亡有着重要的影响,其影响均达1%或5%显著水平;黄粉虫幼虫后期日增重率大于10%的饲养条件为:温度26~27℃、筛粪频率2~4天/次、饲养密度0.61~0.79g/cm~2、饲料含水量33.27~39.71%。
-
The deep water deposition means the deposition in the area where the water depth is larger than 30 meters, in which the major sediments are coarse sand and gravel. This kind of deposition is the relic deposition formed by the Pleistocene alluvial-lacustine deposition reworked under modern channel currents actions, and ususally the Holocene acummulation lack in the deep waters. The transitional zone deposition is the deposition between the low tidal level line and the 30 meters isobath, where the sediment types is changeable and the grain sizes are gradually coarsening from the low tidal line to the deep water area. This kind of deposition is developed by the deep water eroded sediments sorting under the transitional zone current action. The different types distributed along the isobath. The tidal flat deposition is the fine sediment deposition on the tidal flat which is flo sedimentation of the silty clay under the tidal flat dynamic action and ususally developed fluid mud on the lower tidal flat. The channel mouth deposition is the deposition in the channel mouth area. According to the sediment types, it includes sand deposition where there are coarse sediments supply and silt deposition where there are only fine sediments surpport.
峡道深水区沉积是指水深大于30米的峡道底部沉积,它以粗颗粒砂砾石沉积为特色,是现代峡道水动力对第四纪海退时发育的冲洪积和坡积物进行改造形成的蚀余沉积,全新世沉积地层往往缺失;峡道过渡带沉积是指水深介于低潮位线至30米水深线之间发育的峡道边坡沉积,该带沉积以沉积物类型多样为特色,自低潮位线至30米水深线,沉积物粒级逐渐变粗,由粉砂质粘土逐渐递变为中粗砂,是峡道深水区沉积物经多次分选沉积而发育的,基本平行于等深线分布的条带状沉积,在岸坡较陡岸段,过渡带下部可发育重力沉积;峡道潮滩沉积是指在低潮线与海岸线之间发育的细颗粒沉积,它是粘性细颗粒泥沙在潮滩动力作用下,发生动水絮凝沉积而形成的粉砂质粘土沉积,在低潮滩可发育浮泥;峡道口门区沉积则是在峡道汇入大海或海湾时,在峡道出口水流影响所及范围的沉积,根据峡道口门区供给泥沙的特性,峡道口门区沉积有粉砂质淤泥沉积和砂质沉积两种类型。
-
Starting with the elevation of underground water resources and a safe level of mining through variable system theory, this paper analyzes the conditions of underground water resources based on the well-studied determination method of determining the two hydrographical coefficients: rainfall infiltration replenishment rate and irrigation replenishment rate. Then considering irrigation, rainfall, drainage and other related factors, a mathematical model is set up for the calculation of underground water storage,exploitation on water regulation. After analyzing the adaptability of molepipe drainage, an underground water table regulation is given out.
论文从灌区的地下水资源及其可开采量评价分析方面入手,在对两个主要的水文地质参数即降雨入渗补给系数、灌溉入渗补给系数确定方法研究的基础上,对灌区的地下水资源状况进行分析,依据灌区的灌溉、降雨、排水条件及各种现状因素,建立了地下水资源量计算的数学模型,西安理工大学工程硕士专业学位论文计算得到青铜峡灌区地下水的最大补给量和可开采量;另外对在开发利用地下水资源过程中的地下水位的调控进行了初步的探讨,在银北灌区开展对暗管排水调控地下水位的试验研究。
-
Zhejiang is a poor-water province with water volume per head no less than a quarter of world average level. Moreover, its limited water was seriously wasted and polluted . With the development of zhejiangs economy and urbanization, water resource will probably become the bottleneck. Therefore, how to coordinate water, economy and society prefectly will be a thorny problem of Zhejiang must confront.
随着浙江省经济的发展和城市化进程的加快,水资源将成为浙江省未来经济和社会发展的巨大制约,采用经济手段协调水资源与经济社会和城市的发展将是浙江省重要的战略选择。
-
Experts believe the project with the traditional lead-smelting technology, has the following characteristics: First, the smelting process to adopt internationally advanced level of oxygen blowing at the end of smelting - to restore the blast furnace method, the use of lead refining electrolysis ; Second, the use of sulfur dioxide gas double-absorption acid technology, the production of domestic water use of recycled water sewage treatment process; Third, the use of waste heat for power generation, waste to make full use of energy reduces energy consumption; Fourth, the high level of automation, low power consumption , Investment, raw materials adaptable, comprehensive recovery rate of high-quality products.
专家认为,该项目与传统炼铅工艺技术相比,具有以下特点:一是冶炼工艺采用具有国际先进水平的氧气底吹熔炼-鼓风炉还原法,铅精炼采用电解法;二是二氧化硫烟气采用两转两吸制酸工艺,生产生活用水采用循环水污水处理工艺;三是利用余热发电,充分利用废弃能源降低了能耗;四是自动化水平高、能耗低、投资省、对原材料适应性强、综合回收率高、产品质量好。
-
The field water capacity, wilting coefficient and effective water content have negative correlation with crop water requirement, and the linear negative correlation of field water capacity, effective water content and crop water requirement is above the significant level.
土壤田间持水量、萎蔫系数、有效水含量均与作物需水量呈负相关关系,其中,田间持水量、萎蔫系数与作物需水量的线性负相关均达显著水平以上。
-
Firstly, according to study dynamic changes of the elements structures in succession about natural and artificial forest, then summarized regular patterns;at the same time.based on the study of Coupling Relationship between structure and function of water conservation forest established the ideal structures from the stand level and the watershed level. The ideal structures from the stand level: uneven-aged, double layer and mixed structure, and trend to natural forest. The watershed level followed the same principle, that is double layer patches, uneven-aged forest well-distributed and to build up different forest patches in watershed.
首先,经过对北京山区水源林天然林和人工林结构要素的演替动态研究,提出其发展规律,同时依据水源林结构与功能耦合关系研究,从林分层次和流域层次上分别构建了水源林的理想结构,其中,林分层次上水源林的理想结构为:异龄、复层、混交的结构状态,林分结构趋于天然林结构的特征;在流域层次上水源林的理想结构为也应形成&复层&、&异龄&、&混交&的结构,即:在流域各水源林斑块间形成林冠层复层、斑块内部乔木、灌木、草本层的复层;不同水源林年龄面积上的均匀分布;形成不同水源林斑块间的镶嵌分布。
-
There are stories about Confucianism, Buddhism, Taoism, myths and legends; there are water birds, sea water, mountains, pine and plum, Buddha, beautiful ladies, dragon and tiger ...... After reading all the works, you will feel the painter is particularly drawn to the image of the metaphysical level. Yes. Mr. Xingjie's purpose of art is very concerned about the level of the spirit; according to the theory of Poetry in Song and Ming Dynasties, he has reached the "artistic" state and got rid of the fetters of "real quality".
这里有儒释道及神话传说故事,有水鸟、海水、峰峦、松梅、佛像、仕女、龙虎……,看过所有作品,你会感觉到绘者特别钟爱形而上的形象,不错,兴杰先生的艺术旨趣十分关注精神层面的东西,如果借用宋明词学的理论来说,他已达到&空灵&的境界而摆脱了&质实&的羁绊。
-
This paper deals with the advantages of agricultural production in Jiujiang from atmosphere, water resources, soil and water areas. Jiujiang has high level and high intensity of agricultural production, great advantages of economic crops and sea fishery, the framework of agricultural distribution has already formed. Cotton, forestry, and fishery have level advantage and product advantage in Jiangxi province.
本文从气候、水资源、土壤、水域,探讨了九江发展农业生产的有利条件;探讨了九江具有农业生产水平和集约化程度较高,经济作物和水产养殖优势明显,农业专业化生产布局框架初步形成的农业发展特点,以及棉、麻、林业和渔业具有的规模和产值比较优势。
-
Now the water that ice forms in Greenland can cause the sea level rise about 0.5mm every year. The water forms around the world in the past five years caused the sea level rose about 0.5cm.
现在格陵兰每年融化的冰可以使海平面升高0.5毫米,过去五年全球消融的冰释的海平面上升了0.5厘米。
- 推荐网络例句
-
Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".
歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。
-
This is Kate, and that's Erin.
这是凯特,那个是爱朗。
-
Articulate the aims, objectives and key aspects of a strategic business plan.
明确的宗旨,目标和重点战略业务计划。