二重点
- 与 二重点 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This book studies the relationship between automata and monadic second-order logic, focusing on classes of automata that describe the concurrent behavior of distributed systems.
这本书的研究与自动机和一元二阶逻辑关系,对自动机类重点描述分布式系统的并发行为。
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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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Aldol condensation 2, 5-dimethoxymethoxyacetophone with 2, 4, 6 -tri methoxymethoxybenzendehyde, then hydrogenation, reductive, the key intermediate 83 (84) of natural product 3, 5, 7, 2′, 5′- pentahydroxyflavan, was obtained; Mini reviewed EGCg activity, Then gallic acid and phloroglucin were used to synthsis EGCg, The key intermediate Chalcone 109 of EGCg was abtained through 7 steps from gallic acid.
重点介绍了以没食子酸为原料,经酯化,保护,还原,氧化,格氏反应,氧化六步反应得到3,4,5-三苄氧基苯乙酮,以间苯三酚为原料,经维斯迈尔反应,苄基保护,甲氧甲氧基保护三步反应得到2,4-二苄氧基-6甲氧甲氧基苯甲醛,酮106与醛108经羟醛缩合得到EGCg重要反应中间体查尔酮109。
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Pingle was an important town on the ancient South Sichuan Road and South Silk Road. Two thousand years' history has blessed it with a profound cultural heritage.
平乐古镇是古代的川南蜀道,南丝绸之路之重点镇,二千多年的历史铸就了平乐的深厚文化底蕴。
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In this paper,we study emphatically two dimension space,the relations of pointwise nonsquare constants and the relations between the value of pointwise nonsquare constants and other geometric properties.
本文重点研究二维空间并且研究了点态非方常数之间的关系和点态非方常数的取值与其他几何性质的关系。
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And by the end of March this year, China Merchants Securities Food and Beverage industry researcher Wei-Hua Zhu also issued a "tribute wine Furui: Year Protoplasmic edge here," the report, he believed that the company is in the upward inflection point of the period, in addition to product quality, there are two main selling point: a Gujing Group is actively restructuring, the current team the prime of life; Second Year Protoplasmic clear positioning of wine, an increase quickly, this year is expected to achieve earnings per share 0.32 yuan, it is recommended to focus on, the length of the investment strategy Safe.
而在今年3月底,招商证券食品饮料行业研究员朱卫华也发出《古井贡酒:年份原浆初露锋芒》的报告,他认为公司正处于向上的拐点时期,除了产品质量过硬,还有两大卖点:一是古井集团正在积极改制,现任团队年富力强;二是年份原浆酒定位清晰,增长很快,今年每股收益有望实现0.32元,建议重点关注,投资策略长短皆宜。
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Now the Corporation is a large-sized No.2 enterprise, provincially advanced and one of the 200 large and medium sized collective enterprises in the light industry.
公司现为大型二企业、省级先进企业、全国轻工待业重点发展的200家大中型集体企业之一。
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The application and production process of pyromellitic dianhydride are presented,and the recycle and application of the waste in manufacture was emphasized.
本文介绍了均苯四甲酸二酐的用途和生产过程,同时重点介绍了生产中废料的回收利用。
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Synthesis with carbocyclic compounds, such as cyclodienylsilane, quinic acid and norbornene etc, as starting materials is discussed in detail.
重点介绍了以环二烯基硅烷、奎宁酸、降冰片烯等碳环化合物为原料合成碳环糖的进展。
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In order to investigate the basic heat transfer characteristics of the platelet regeneratively cooled thrust chamber, the second chapter focussed on the developed flow and heat transfer in the long straight regenerative cooling channels with rectangular sections.
为了解层板再生冷却推力室在传热上的基本特征,第二章重点研究流动和热充分发展的矩形截面长、直再生冷却通道内的传热问题,建立了层板再生冷却推力室二维流固耦合传热过程的数理模型,采用通用形式控制方程描述冷却剂紊流传热和通道材料内导热的共轭传热问题,从而避免了流-固区域之间的反复迭代,大大缩短了计算时间。
- 推荐网络例句
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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。
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Go down on one's knees;kneel down
屈膝跪下。。。下跪祈祷
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Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.
Nusa Dua :豪华度假村,冲浪和潜水,沙滩,水晶般晶莹剔透的水,网络冲浪。