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Through the tests on gas driving water and water driving gas, the flow law of gas and water was real-time observed. Mainly based on the test of water driving gas as an example, the development of molding coal sample and NMR triaxial osmoscope was demonstrated. The experiment process of water driving gas and parameters were demonstrated. NMRI images of molding sample in horizontal cross-section along the driving direction were obtained by NMRI instrument. The results from images were analyzed and compared. Some novel laws were obtained as the following:(1) the leading edge of water driving has inconsistency. This certified the important previous conclusion that the storage of methane mainly was absorbed in inner surface of pore from NMRI technique;(2) the existence of dominant driving pathway was tested and the way kept almost fixed. The pathway is apt to exist in the edge of coal samples where pore and fracture fully develop;(3) the variation of water flow determines the transport velocity of leading edge of water driving and it has lag effect;(4) the effectiveness of the first driving is better than the second driving;and (5) the subsequence of water driving gas are from trunk fractures to branch fractures, then to branch pores.
主要以水驱气NMRI试验为例,详细介绍了核磁共振三轴渗透仪和型煤试件的研制,并重点阐述了水驱气试验过程和相关参数,利用NMRI技术实时观测得到了不同时间沿驱替方向型煤试件水平剖面的NMRI成像图,最后对试验结果进行了比较分析,揭示了一些新的规律认识:(1)水驱替前缘具有不一致性,从NMRI试验角度验证了前人甲烷类气体赋存形式主要以吸附在孔隙内表面为主的重要结论;(2)煤试件存在优势驱替路径,且这种优势路径在驱替过程中基本保持不变,水驱气的优势驱替路径易产生在煤试件边缘,即煤孔隙裂隙发育区;(3)水驱流量变化决定了水驱前缘的运移速度,且对水驱气效果具有滞后效应;(4)水驱气初次驱替效果好于二次驱替效果;(5)水驱替气的顺序为:主要大裂隙—周边裂隙—周边孔隙。
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In order to further understand the dependence of bioactivities on the structure of new fluorine-containing pesticidal compounds to build up significant ligand-receptor models, and to find out the pharmacophores of these analogues, 3D-QSAR analyses have been carried out with DISCO, CoMFA and Leapfrog approaches on the basis of our previous classical QSAR study. Firstly, the compounds were classified according to their structures.
为了能更深入地认识含氟新化合物作为农药的生物活性和其结构间的关系,建立有意义的药物-受体作用模型,寻找同类化合物的药效团,对合成的含氟化合物在经典QSAR方法研究的基础上,又进一步运用DISCO,CoMFA和Leapfrog方法研究了它们的三维构效关系。
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On the question of competitor products, led by ceramics and porcelain stoneware, their overall availability in quantitative terms (equal to roughly 7.1 billion square metres) is now over seven times that of stone, but without significant ponderal variations in relation to the previous two-year period, highlighting also in relation to this comparison, the consistent prospects for further growth for marble and stone, especially if supported by a suitable promotional policy, able to optimize the current impact, which in some ways is still fragmentary, despite some significant initiatives such as those of the quality mark, architectural prizes and technological symposiums.
作为石材的竞争产品,以陶瓷和瓷砖为代表,它们总生产量约为71亿平方米,相当于石材产品的7倍之多。和前两年相比,波动幅度不大。尽管一些组织设立了质量标准、建筑奖项以及技术研讨会等等,人们更关注的是把陶瓷、瓷砖与大理石及其石材的发展前景进行相比较。尤其是在有效的促销政策的引导下,大理石及其石材行业应该能够采取有效措施应对这些影响。
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This thesis quantifiably analyses the two ditransitive constructions, i.e. double objects construction and dative construction, combining with the usage-based grammar theory and common principles of cognitive linguistics. This thesis is trying to expose the practical used models and explain the functional motivations, moreover, to testify the previous study and give a new approach to some valuable questions. This thesis consists of five chapters.
本文对现代汉语双宾和与格这两种双及物句式进行了定量分析,结合&基于用法的&语法理论和认知语言学的一般原则,旨在揭示两种句式的实际的用法模式,并解释其功能动因;对已有研究的结论进行验证,对一些值得进一步讨论的问题提出新的看法。
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In the previous decade, preparedness consultant, survival bookseller and author Don Stephens from California, had popularized the term "retreater" to describe those in the movement, referring to preparations to leave the cities for a remote place of haven or survival retreat when/if society breaks down.
在过去的十年里,来自加利福尼亚州的备灾顾问,生存书的作者斯蒂芬,用& retreater &来推广和描述那些运动,他指的是准备离开城市一个偏远的地方生存或如果社会崩溃怎样后退后,再转到西北内陆。
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Under confused sea condition, the structures may subject to very strong w ave impulsive 1oad due to slamming by the wave with significant crest when waves propagate underneath the structure and surge up to its subface. Previous studies indicate that impact pressures are characterized by an initial peak pressure of considerable magnitude but of short duration occurs, followed by a slowly-varying uplift pressure of less magnitude but of considerable duration, and which typically is first positive, then decreases to zero and becomes negative, In hostile sea state, the peak pressures may cause the damage of the horizontal members of the structures or make the whole superstructure collapsed.
若这些海上建筑物的上部结构底高程较低,在恶劣海况下当大波浪在其面板下面通过并与之接触时,面板下面除了作用有强度变化较缓慢的波压力外,在波峰刚接触到面板时尚存在着历时很短但强度极大的冲击压力,这种极强冲击荷载会引起建筑物的整个上部结构失稳或造成局部破坏。
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It tends not to be as easy to navigate as the previous sites, so it's generally harder to find all the information you want nicely tabulated.
它往往不那么容易浏览,因为以前的网站,因此它的一般更难找到所有您想要的信息很好的表列。
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It tends not to be as easy to navigate as the previous sites, so it's generally harder to find all the information you want nicely tabulated.
它往往不是那么容易浏览,因为先前的地点,所以这是一般难找到的所有资料,你要好好表。
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A suggestion is put forward to adding H2SO4 or (NH4)2SO4 into the mother liquor after calcium nitrate tetrahydrate separated for a further removal of residual Ca, thus the Ca content can be decreased to 0.35% from the previous 3.4%, and the viscosity of neutralized slurry to 0.04 ~0.08 Pa·s, with nice fluidity of slurry Water soluble phosphorus accoun ts to 88%~90%, and the process improves the adaptability of phosphate rock to nitrophosphate production.
提出分离四水硝酸钙后的母液加入H2SO4或(NH4)2SO4进一步除去母液中残钙,可使母液中钙含量由3.4%降到0.35%以下,中和器中料浆粘度可降到0.04~0.08 Pa·s,料浆流动性很好,产品中磷的水溶率可达88%~90%,并提高了硝酸磷肥生产对磷矿的适应能力。
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This Council was held in Constantinople (aka in Trullo , literally,'under the dome' because of the building used) It was convened due to the lack of canons from Fifth and Sixth Ecumenical Councils, Called by Emperor to promulgate canons necessary to correct issues still outstanding from the previous Councils.
本会召开了君士坦丁堡(又名在trullo ,从字面上来看,'圆顶下',因为该大厦的使用),它是召集由于缺乏大炮,从第五次和第六次全基督教议会,所谓由皇帝颁布炮,有必要纠正问题尚待完成,由以前的议会。
- 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。