较大的
- 与 较大的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Ferromagnetic: Having positive and relatively large susceptibility and generally large hysteresis and remanence.
铁磁性的:具有相对较大的正磁化率系数且磁滞和剩磁一般也较大。
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The crude tank farm of refinery consumes a great deal of steam to maintain the temperature of crude oil, which is a potential field for energy saving.
炼油企业的原油罐区维温蒸汽消耗量较大,具有较大的节能潜力。
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The forward results show that the surface response is different when using vertical line source and slant source for the same model. we shouldn't consider slant well as vertical line source in practical application.
正演结果表明相同模型使用倾斜线源和直线源其地表响应有较大的差别,实际应用中不能将井斜较大的井当作垂直线源,而应以倾斜线源处理。
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Rates of nucleotide substitution vary greatly among plant mitochondrial, chloroplast, and nuclear DNAs. Proc Natl Acad Sci USA [J].1987, 84 (5):9054.[3] Ainouche M L, Bayer R. On the origins of the tetraploid Bromus species: insights from internal transcribed spacer sequences of nuclear ribosomal DNA[J].
而山西平遥产山药D= 0.004 76与山西太谷产山药D= 0.004 27基本没有差异,它们和河北安国产山药D= 0.004 36共同与怀山药有较大的同源性,通过ITS序列分析,这几种不同产地的山药之间碱基仅相差几个,提示它们具有同源性;野生山药与种植山药碱基数目相差较大,说明种植山药在驯化过程中产生了变移,使物种更进化。
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By comparing and analyzing, it is concluded that for simple and slow slope terrain, the change of wind speed around hill can be truly calculated by some experimental formula such as MSFD calculations. While for cliffy slope and complex terrain experimental formula cant calculate the wind speed truly, it is well to analyze the question by numerical simulation.
通过对比分析可得,对于简单的、坡度较小的地形,山丘周围的风速变化可以较准确的由一些经验公式,例如MSFD理论模型计算得出;而对于坡度较大的以及较复杂的地形,经验公式无法较准确地对风速做出估算,只能借助于数值模拟来分析。
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At the super-low permeable reservior sandstone of Fu and Yang in Daqing Oilfield, many pore throats exist a lot in the types of compacted and restored flakes and curved lamellas while the pore volume of micropore and the thin, compacted and shrunken throat that contribute little to flow take large scale in the total pore space. Thereof high filtrational resistance is caused by much trouble including high content of reservoir shale, serious sensibility to pressure at waterflooding, remarkable effects of undersaturation and water blocks in micropore. A method with laboratory experiment, theoretical confirmation and field application included was adopted to analyze the non-linear flow characteristics, to reveal the deep mechanism of pinhole enveloping macropore and to provide a new technology of improving the development effect. The outcomes aquired are as follows: Multiple cores with different low and super-low permeability were selected to perform seepage experiments by gas, water and oil. Three fields of flow were observed in the reservoir at different low and super-low core permeability. They are pseudo- elastic flow, transition flow and plastic creep flow. So the concept that there was no correlation of rocky absolute permeability with fluid properties that pasted itself was broken up. Two-phase seepage of water displacing oil in uniform super-low permeability shows that the two-phase seepage zone is narrow.
针对大庆油田扶、杨特低渗透油层砂岩孔隙喉道的大小和形态以压实再生型片状、弯片状喉道分布较广,压实、缩小型细喉道型,微孔不可流动的孔隙体积所占总孔隙体积的比例较大的特点;及储层泥质含量高,注水开发中压力敏感性强、微孔隙欠饱和及水锁效应显著,导致流体渗流阻力增大的问题,本文采用室内实验、理论推证和矿场应用相结合的方法,研究、分析了流体非线性渗流特征,更深刻地揭示出小孔包围大孔的机理及产生原因,并提供了改善开发效果的新的技术方法,取得如下成果:选择不同渗透率的低渗透、特低渗透岩心,进行了气、水和油单相渗流实验,揭示出当岩心渗透率不同时,油层内的流体呈现出拟弹性流变、过渡流变、塑性蠕变三种流变区,从而打破了岩心的绝对渗透率与通过岩心流体性质无关的观点;同类特低渗透岩心的水驱油两相渗流实验表明,两相渗流区较窄。
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Parviflora in shrub communities had the xeromorphic traits in the aspects of ① their secondary xylem had shorter vessel elements, higher vessel frequency, less single porous percentage, lower rays, higher relative conductivity and lower vulnerability index, and ② their leaf had lower water potential, lower water content and free water content, higher bound water content, high ratio of bound to free water content, and less specific leaf area.
扁担木叶片、次生木质部的解剖和水分生理特征均表现出一定的可塑性,其可塑性指数高低顺序为次生木质部解剖特征(0、24)〉水分生理特征(0.19)〉叶片解剖特征(0.18)、与侧柏林和混交林相比,灌丛中扁担木个体对干旱生境有一定的适应能力,表现在次生木质部导管分子短,导管频率高,单孔率低,木纤维短,射线矮小,具有较大的相对输导率和较小的脆性指数;叶片水势、组织含水量、自由水含量较低,叶面积、比叶面积较小,而束缚水含量、束缚水自由水比值较高。
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When existing a relatively large juxta-pleural nodule in lung CT image,because of the lacunas in the segmented lung,the attached nodules may not be distinguishable from the lung.
在计算机辅助CT图像肺部肿瘤诊断系统中,当肺区内部存在较大粘连肿瘤时,将导致分割出来的肺区存在较大的缺陷,因而在肺区内部就无法识别粘连肿瘤。
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On the basis of analyzing the thermodynamic properties and cycle performance of pure refrigerants, the paper optimizes their concentration while screening NARMs used in wide variable-temperature heat source. The practical applications of NARMs, such as R22/R123, R123/R125 etc., are studied in geothermal heat pump, seawater heat pump, air dehumidification system and dual-evaporator domestic refrigerator. The results show that the NARMs can match the limitation of a pinch point at the air-side exit of heat exchanger, reduce the unreasonable heat transfer temperature difference, and improve the COP of system. The above conclusion is proved by measuring the cycle performance of R12, MP39 and R11/R22 in a two-evaporator experimental system.
其次,本文在工质热物性和变工况循环性能分析基础上,筛选和优化了适应外部大变温热源约束条件的非共沸混合工质及其浓度配比;讨论了相变温差较大的非共沸混合工质(如R22/R123、R123/R125等)在地热源供热热泵、海水源供热热泵、双门冰箱和热泵空气除湿的应用,计算分析表明制冷与热泵系统采用相变温差较大的非共沸混合工质有利于弱化传热过程的&窄点&的约束,减小传热过程中的不合理温差,提高系统COP值;通过建立双蒸发温度循环系统试验装置,对R12、R22/R11和R22/R152a/R124循环性能进行实验研究,结果与理论分析一致。
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Different frequency and density of INA bacteria were showed in the different parts of tea plant.
此外,在雨水较多、湿度较大的季节茶树上冰核细菌的密度较高,而在干燥寒冷的时候则较难分离得到冰核细菌。
- 推荐网络例句
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Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.
最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势,并设计了一款彩色夜视摄像机。
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Only person height weeds and the fierce looks stone idles were there.
只有半人深的荒草和龇牙咧嘴的神像。
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This dramatic range, steeper than the Himalayas, is the upturned rim of the eastern edge of Tibet, a plateau that has risen to 5 km in response to the slow but un stoppable collision of India with Asia that began about 55 million years ago and which continues unabated today.
这一引人注目的地域范围,比喜马拉雅山更加陡峭,是处于西藏东部边缘的朝上翻的边框地带。响应启始于约5500万年前的、缓慢的但却不可阻挡的印度与亚洲地壳板块碰撞,高原已上升至五千米,这种碰撞持续至今,毫无衰退。