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ice floating on a river during the spring thaw相关的网络例句

查询词典 ice floating on a river during the spring thaw

与 ice floating on a river during the spring thaw 相关的网络例句 [注:此内容来源于网络,仅供参考]

According to the energy conservation theory, BOM and CSIM4 were coupled. The BOM has no treatment on transmission solar radiation, which is of great importance when the model is adapted to Arctic Ocean. So the treatment was introduced to BOM. Through numerical test on different lead albedos, it was found that sea ice thickness is not so sensitive to lead albedo, which may be contribute to the lead occupies little ratio within multiyear sea ice pack. The reason of summer over-melt of arctic sea ice is the NCEP reanalysis downward solar radiation being larger than its reality. Then the arctic sea ice climate variability was simulated. Results showed that: simulated ice thickness change is in accord with the submarine investigated mean sea-ice draft changes. Simulated annually maximum ice thickness along the Eurasian continental oceans are closely related to the observed ones. The long-term mean simulated ice motion has the same features of the SSM/I derived ice motion. Sea ice extents in differential sub-regions have same trends comparing to the satellite passive-microwave data derived ones. Simulated ice concentration is closely related to the observed in the Arctic sub-regions. Sea ice flux through the Fram Strait involves ice concentration, motion and thickness. It is a composite criterion for sea ice model evaluation. The simulated ice area and volume export through the strait accord with the satellite derived or statistically reconstructed ones.(5) The simulated ice thickness climate variability and mean sea surface current of the coupled model were analyzed, results showed: the total ice volume in the Arctic Ocean has a significant decreasing trend. The volume variability is of a 10-year timescale oscillation, with two major periods of 12-13a and 18-20a. Mean ice thickness in the arctic sub-seas has different tendencies. It has an increasing trend in the Barents-Kara Sea and Baffin Bay-Labrador Sea, and decreasing in the others. The characteristic time scale of 7-10a wherein the river discharges leads the Fram Strait ice volume export is about the period that river water takes to be conveyed across the Arctic Ocean.(6) Using the simulated ice distribution in the Arctic Ocean and China precipitation, air temperature and SST in tropical key regions, the climate teleconnection were studied. Result showed: When the mean sea ice thickness is large in the central Arctic Ocean and Chukchi-Beaufort Sea , and small in the Barents-Kara Sea and Baffin Bay-Labrador Sea , the precipitation in South China, Tibetan Plateau, and the north part of Northeastern China are always smaller than normal, and v. v. When the mean ice thickness is small in CA, BC, East Siberian Sea and Greenland-Iceland-Norwegian Sea , and large in BL, The air temperature in north-eastern China, the southern of Tibetan Plateau, and Hainan Island, are always lower than normal, and v. v. In addition, when the sea ice is thick in BC and BL, the SST is larger in the middle and eastern Pacific Ocean, and is smaller in the tropical Southeastern Indian Ocean.

由于BOM没有考虑透射太阳辐射的物理过程,研究表明透射太阳辐射对北冰洋的能量收支起到重要作用,因此在BOM模式中引入了对透射太阳辐射的处理;通过对不同水道反照率的数值试验表明海冰厚度对水道反照率的敏感性不强,可能与海冰区水道面积占的比率很小有关;而模式模拟的北极海冰夏季&过度融化&主要源于NCEP再分析资料提供了偏大的太阳短波辐射;对北极海冰的气候变率进行了模拟研究,结果表明:模拟的海冰厚度变化与潜艇探测的海冰吃深度变化具有一致性;模拟和观测的亚欧大陆沿海的年内最大海冰厚度有很好的相关;模拟的海冰移速与长期平均的卫星反演的海冰移速具有相同的速度分布特征;模拟的各个海区海冰面积的变化趋势与卫星反演资料分析的结果基本一致;模拟与观测的主要海洋分区的海冰密集度具有很好的相关:弗瑞姆海峡的海冰体积和面积的输送涉及到海冰密集度、厚度和移动速度,是判断模式模拟能力的一个综合的指标,模式模拟的结果与卫星反演或重建的面积输送、体积输送具有很好的一致性;(5)分析了模拟的北极海冰厚度的气候变率及气候平均表层海流场,结果表明:北极海冰的总体积有显著减少的趋势,北极海冰总体积的变化具有10a际尺度振荡的特点,存在18-20a和12-13a两个主周期;北极海冰的平均厚度在各个海区的变化趋势不同,在巴伦支—喀拉海和巴芬湾—拉布拉多海地区海冰厚度有显著的增加趋势,而其它海区存在减少的趋势;通过对模拟的气候平均表层海流的分析表明,北极河流流量超前弗瑞姆海峡海冰流量7-10年的特征时间尺度与表层海流的气候分布存在着必然联系:(6)利用模拟结果以及中国降水、气温和热带关键区SST资料,讨论了北极各海区海冰平均厚度与中国降水、气温以及热带关键区SST的关系,结果表明:在北极中心海区和楚科奇—波弗特海海冰厚度偏大,在巴伦支—喀拉海以及巴芬湾—拉布拉多海海冰厚度偏小,则中国降水在华南地区、青藏高原和东北北部降水偏少,反之相反;在北极中心海区、东西伯利亚海、楚科奇—波弗特海以及格陵兰海海冰厚度偏小,在巴芬湾—拉布拉多海海冰厚度偏大,则在中国东北地区、高原南部地区和海南岛附近气温偏低,反之相反;另外,北极楚科奇—波弗特海和巴芬湾—拉布拉多海海冰厚度偏大时,在热带中东太平洋海温偏高,而在热带东南印度洋海温偏低。

Its main products include compress screw spring, extension spring, torque bar spring, torsionbar spring, circlet spring, drum spring, pagoda spring, butterfly spring, steel-plate spring, flat worm wheel spring, window spring of windowmachine, membrane spring, undee spring, mould spring, rectangle steel spring, steel-plate pagoda spring, swing damping spring, truck air-chamber trig spring, and motorcycle damping spring, made of 0.2-75mm diameter square and rectangle stainless steel and tin bronze.

主要产品:种类有压缩螺旋弹簧、拉簧、扭簧、长簧、鼓形弹簧、宝塔形弹簧、碟簧、钢板弹簧、平面蜗卷弹簧、摇窗机弹簧、膜片弹簧、波形弹簧、模具弹簧、方扁钢弹簧、钢板宝塔弹簧、各类轿车、微型汽车悬挂减震弹簧、摩托车前后减震弹簧、载重汽车气室制动弹簧等,规格从钢材直径0.2-75mn,有方形钢、扁钢,有各种不锈钢和锡青铜弹簧等。

Production varieties: a type of compressed coil spring, La Huang, torsion spring, Kahuang, drum-shaped spring, pagoda-shaped spring, the disc spring, spring steel, flat cochlear Volume spring, shaking windows of spring, the diaphragm spring, the wave spring, Dies Spring, the flat steel springs, spring steel pagoda, all types of cars, mini-car hoisted damping spring, before and after the shock absorption spring motorcycle, truck brake spring chamber, the diameter of steel specifications from 0.2-75 mm, a square steel, Chen Shui-bian Steel, a variety of stainless steel and tin, such as spring bronze.

生产品种:种类有压缩螺旋弹簧、拉簧、扭簧、卡簧、鼓形弹簧、宝塔形弹簧、碟簧、钢板弹簧、平面蜗卷弹簧、摇窗机弹簧、膜片弹簧、波形弹簧、模具弹簧、方扁钢弹簧、钢板宝塔弹簧、各类轿车、微型汽车悬挂减震弹簧、摩托车前后减震弹簧、载重汽车气室制动弹簧等,规格从钢材直径0.2-75mm,有方形钢、扁钢,有各种不锈钢和锡青铜弹簧等。

Spring products: computer spring machinery, computer spring compression machinery, spring machine, spring lapping machine, bending machine, spring tester, torsion spring tester, vehicle suspension spring, valve spring, clutch spring, shock absorption spring for motorcar, oil pump spring, special shape spring, mold spring, hydraulic pillar spring, etc.

弹簧相关制品:电脑弹簧制造机、压簧机、弹簧机、弹簧研磨机、弯线机、弹簧试验机、扭簧试验机、汽车悬架弹簧、气门弹簧、离合器弹簧、摩托车减震弹簧、油泵弹簧、民形弹簧、模具弹簧、液压支柱弹簧等。

Therefore liquid CO_2 avoids gas-solid multiphase flow, and supplies continuous low temperature gas for cryoprobe. Experimental results show that the 2-dimension temperature distribution for the first time, it includes:(1) The cooling velocity and freezing zone increases along the flux up at certain size of the cryoprobe in the same biological tissue.(2) As the diameter of cryoprobe increases, the temperature will descend faster, freezing zone will be broader obviously, and ice ball become larger. Until it arrives heat balance, the temperature keeps invariability.(3) Single freezing-thaw results in biggish mechanical injury already for loosen tissue such as pork liver; Successive freeze-thaw circle could quicken freezing and thaw velocity for compact tissue, and it has proved the more mechanical injury of successive freeze-thaw circle than the single freezing-thaw treatment.

文中首次对生物组织进行了二维温度场分布实验研究,得出:(1)当刀头大小一定,对同一组织冷冻时,流量越大,降温速度越快,降温影响区域越大;(2)随着冷刀直径的增加,降温速度随着增加;温度影响区域明显增大;冰球直径也随着增大,热量平衡后温度几乎不随时间变化;(3)对于结构疏松组织比如猪肺脏,单次冻融对组织已造成较大的机械破损;对于结构较致密组织,多次反复冻融可以使降温和复温速率增加,单次冻融的热应力造成的机械破损较小,多次冻融后造成的机械破损比单次冻融所造成的机械破损大;(4)直喷式刀头比导热式节能约15%。

A method for cold transportation of goods that are placed in a hollow-walled refrigerating container, comprising the following steps: storage of a pumpable solution of tiny ice crystals, known as binary ice, having a given composition and temperature, in a binary ice store until said binary ice is used for refrigerating or filling purposes; the optionally filled wall of the refrigerating container that is to be used is emptied via an outlet valve for the binary ice; binary ice is allowed to circulate inside the refrigerating container via filling instruments that are supplied with binary ice from the binary ice store until the temperature of the wall drops to a given temperature, whereby the heated fluid that is discharged from the outlet valve is fed to a binary ice fluid store; the wall of the refrigerating container is filled with a given amount of binary ice; the refrigerating container is decoupled from the filling instruments; the binary fluid that result from the melted binary ice is returned to a corresponding binary fluid store in order to produce new binary ice from said binary fluid.

一种置于一中空壁制冷容器里的制品的冷运输用的方法包括下列诸步骤:将一种具有一预定的组成和温度的可被泵送的小的冰晶体的溶液保存在一个二元冰储槽中,直到所述的二元冰用于制冷或充填目的;通过一二元冰出口阀将待被使用的一制冷容器的随意被充填的壁排空;用二元冰充入该制冷容器的被排空的壁内;通过充填器具使该二元冰在该制冷容器里循环,这循环由来自二元冰储槽的二元冰供给,直到壁温下降到一预定值,从而从该出口阀放出的被加热的流体被提供给一个二元冰流体储槽;将一给定量的二元冰充入该制冷容器的壁里;从诸充填器具上拆离该制冷容器;将从溶化的二元冰形成的二元流体返回到一相应的二元流体储槽内,以便从所述的二元流体制取新的二元冰。

The fabrics and crystals of one-year ice in the Bohai Sea show that the noncontiguous ice growth rate makes an ice sheet have level layers with different amount of air bubbles in lower part of the ice sheet; typical grain ice and columnar ice occur in the gray ice which grows in stable water; thaw-refrozen ice and rafted ice have their crystal characteristics.

作者中文名:李志军;康建成;蒲毅彬摘要:渤海一年冰的组构和晶体结构表现出的冰的非连续生长速率使得冰层底部具有气泡含量不同的许多分层;静水生长的灰冰具有典型的粒状冰和柱状冰;融化-重冻结冰和重叠冰具有特定的晶体结构。

Accordance with volume of biogas actually using requirement so that actualize supporting facilities, it can keep the pressure contant of biogas using for long time, the floating cover upside of body be pressurized, when the floating cover biogas digester fermenting to produce biogas will drive the soft PVC floating cover rising up with biogas storage, if user make use of biogas in case of biogas stove which the biogas pressure will be drop below in conjunction with floating cover will synchronous drop, when the floating cover has full of biogas which supernumerary of biogas automatic overflow to outside from bottom side of floating cover, it can not be appear with over high pressure thereby cause the tympanites of floating cove burst or biogas pipe burst and never has such phenomenon happen, the floating cove type biogas digester has reliable safe security.

根据沼气实际使用需求用量来做相应配置,可以保持长期在恒压状态沼气气压,浮罩顶部是密封的,当浮罩式沼气池发酵时所产生的沼气使浮罩上升并储存沼气,如果用户在用沼气炉灶用气时沼气压力将随之下降的同时浮罩也随着气压的下降而降低,当浮罩充满沼气时多余的沼气会自动从浮罩底部溢出,不会出现因气压过高造成鼓池、爆裂或爆管现象发生。浮罩式沼气池具有非常可靠的安全保障。

A review of river management history in various countries is used in this thesis to discuss the future development trends of river management and the relationship between river health and river management.Based on the characterization and assessment of river health, Five components of stream condition are presented in this thesis to characterize river health: water quality, aquatic life, physical form, hydrology and streamside zone. It is obtained by comparing the methods and criteria that have been developed by others and reviewing the river assessment practices in various countries. Accounting for the features of urbanization region in plain river network, an indicator system for river health assessment which provides scores for 5 subindices and 17 indicators is established. With almost 200 stream reaches in Shanghai as objective of study and Liwa stream and Zhangjiabang Creek as case study, the application of river health assessment in the planning, baseline survey and post-project appraisal of river management is explored by collecting historical literature and field monitoring. Consequently, some suggestions to improve river management effectiveness are presented from the angle of river health.

本文回顾河流管理漫长历程并指出当前国际发展趋势,进而辨析河流健康状况与河流管理的关系;以河流健康状况的表征和评价为核心,通过对国外RIVPACS、AUSRIVAS、IBI、RCE、ISC等河流健康状况评价方法的分析和比较,以及对美国、英国、澳大利亚、南非等国家河流健康状况评价实践的总结,尝试从理化参数、生物指标、形态结构、水文特征、河岸带状况5个方面全面表征河流健康状况;结合中国东部平原河网地区自身特点,通过评价原则、评价指标、评价标准、评价权重确定等步骤,初步构建了包含河流水文、河流形态、河岸带状况、河流水质以及河流生物5个一级指标(共17个指标)的河流健康状况评价指标体系;在此基础上,采用资料收集与现场实测相结合的方法,以上海近200条中心河道为研究对象,以丽娃河和张家浜为典型案例,分别就河流健康状况在河流管理规划、现状评估以及后评估中的应用进行实证研究,并尝试探讨如何从这三个阶段利用河流健康状况评估改进河流管理的对策。

The paper sees Horton code as a primary characteristic value and generalizing condition of the river network, and selects, simplifies and generalizes river based on scale of before and after generalization,, The main contents of paper include:(1)Reviews generalization concept, arithmetic operators, methods, influence factor and frame of map generalization and design, analyze core theory of feature —oriented map generalization, discuss the main context and applicable method of river feature generalization(2) Summarizes natural form and spatial configuration characteristic of the river network, and describe the river network using digraph Paper mostly researches tree —like river, identifies the direction of river based on the angle of the main and secondary reach, and identifies the main river based on most length and predominant continuation of the flow direction along the major channel , then receives the grade of river by recursion and structuralize river network, builds hiberarchy rank system of river based on Horton coding(3)Designs the model of river network based on Horton code, and organizes the data of node, branch and river.

本论文把Horton编码作为水系网的一个主要特征值并以此作为综合条件,并根据综合前后的比例尺对水系网进行选取、化简和概括。论文的主要工作包括:(1)总结地图综合的概念、算子分解、实现方法、主要影响因素和总体设计框架,分析面向地理特征的制图综合的核心理论支撑,在此基础上讨论水系专题要素综合的主要内容和综合适用的方法。(2)总结水系网的自然形态和空间结构特征,用图论对水系网进行描述。以树状水系作为主要研究对象,依据树状水系的主支流交汇关系确定水系流向,依据水系中主流的长度最长和主流保持原有的流向趋势确定主流,按此递归得到河流的不同级别,对基于河段组织的水系网结构化,自动建立水系的Horton编码。(3)设计基于Horton码的水系网模型,对结点、河段、河流和河系的数据进行有效的组织。

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推荐网络例句

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入,与管线26相通,与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。

For he that is now called a prophet, in time past was called a seer.

他们就往天主的人所住的城里去了。