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1.
发生于1939年9月-1942年初的长沙会战,是抗日战争时期在国民党正面战场展开的三次重大战役。这三次战役,特别是第三次长沙会战,沉重地打击了日本帝国主义的嚣张气焰,鼓舞了中国人民抗战胜利的信心,提高了中国在世界反法西斯阵营的地位和影响,在我国抗日战争史上写下了辉煌的一页。  相似文献   

2.
常德会战是发生在中国抗日战争战略相持阶段后期、中日双方投入较大兵力的一次大会战,是抗日战争正面战场诸战役中少有的、令世人为之瞩目的一次“惨胜”。常德会战的“惨胜”,充分体现了中国广大爱国官兵所具有的爱国精神和民族气节。值此世界各国隆重纪念世界反法西斯战争胜利60周年之际,回顾此次会战,既有重要的历史意义,更有强烈的现实意义。  相似文献   

3.
长沙会战是抗日战争期间中国正面战场开展最成功、最受世界关注、所获评价最高的战役。它不仅处于中国抗战的关键点,而且也处于世界反法西斯战争的关键点;不仅改变了中国抗日战场的被动局面,开创了中国正面战场战役反击的先例,而且成功逆转了太平洋战争爆发后盟军连遭失败的形势。会战中战区总指挥守土有责、与城共存亡的精神,将士英勇顽强、敢于牺牲的精神以及民众同仇敌忾、团结一心的精神,是对尚武好勇、自立自强、爱国爱种之湖湘精神的最好诠释和体现。  相似文献   

4.
1939年9月至1942年1月,中国第九战区军民经浴血苦战,粉碎了侵华日军“三犯湘北,直取长沙”的大规模军事进攻(即三次长沙会战),取得了自忻口战役、台儿庄战役以来正面战场上又一重大胜利。对于三次“湘北大捷”,历来史家臧否不一,尤其是鄂南人民在此期间的艰苦抗战于取得“大捷”有何作用,至今的有关抗战的著述中,不是一笔带过,就是语焉不详,这不能不是关于湘北会战研究中的缺憾,而且与鄂南在抗战中所处的战略地位也是极不相称的。出现这种状况,一是湘北会战的重大战事在湘北进行;二是会战期间中共领导  相似文献   

5.
鄂西大会战是抗日战争时期国民常正面战场上的一次较大规模的会战。被蒋介石称为斯大林格勒的石牌,由于其特殊的地理位置而成为决定会战胜败的关键。石牌战役的胜利在抗战历史上了重要的战略影响。文章系统的论证了石牌战役的战略部署及其战略影响,对石牌战役进行了中肯的历史评价。  相似文献   

6.
长沙会战是抗日战争期间中国正面战场开展得最成功、最受世界关注、所获评价最高的战役。它不仅处于中国抗战的关键点,而且也处于世界反法西斯战争的关键点;不仅改变了中国抗日战场的被动局面,开创了中国正面战场战役反击的先例,而且成功逆转了太平洋战争爆发后盟军连遭失败的形势。会战中战区总指挥守土有责、与城共存亡的精神,将士英勇顽强、敢于牺牲的精神以及民众同仇敌忾、团结一心的精神,是对尚武好勇、自立自强、爱国爱种之湖湘精神的最好诠释和体现。  相似文献   

7.
台儿庄战役(也称台儿庄会战)是抗日战争初期中国军队在山东省南部与日本侵略军进行的一次较大规模的战役。这个战役的作战地区包括以台儿庄为重心的整个鲁南地区,所以也被称做鲁南会战。在这次战役中,中国第五战区的北线部队以优势兵力和旺盛的斗志将日军第五、第十师团的主力阻挡和包围在台儿庄及临沂地区,并给以重创。在  相似文献   

8.
反攻宜昌战役是抗战时期发生在鄂西地区的一次大规模战役。为策应第二次长沙会战,国民党第六战区军队于1941年9月至10月在鄂西发动了反攻宜昌战役。战前,中国军队进行了周密的计划和部署。战役爆发后,第33集团军、第20集团军分别在宜昌东北、东南方向南北夹击日军,长江上游江防军、第26集团军则在宜昌以西、以北地区进行主攻,几度攻入宜昌城内,困守城内的日军残部陷入绝境,但最终中国军队未能完全占领就被迫撤退。其原因有三:第六战区指挥存在失误;第六战区部队缺额严重,训练不足,装备落后;日军训练有素,装备精良,并依托坚固的工事进行顽抗。反攻宜昌战役是第二次长沙会战的重要组成部分,在抗战史上产生了重要影响。  相似文献   

9.
长沙会战是抗日战争各次大会战中打得最漂亮的会战.跟其他会战相比,有五个突出的闪光点:以中国守军的胜利而结束会战;以己方较少的牺牲而歼灭了大量敌军;指挥恰当,战略正确;上下团结,同仇敌忾;具有更加重要的国际意义.  相似文献   

10.
淞沪会战(又称“八一三”上海抗战),是抗日战争战略防御阶段,国民政府军与日本法西斯侵略军进行的一场规模空前的重大战役,是一场捍卫中华民族尊严的正义战争.这次会战从1937年8月13日至11月12日,历时三个月,中日双方共投入百余万精锐部队(其中,中方70多万人,日方约30万人),其战役规模之大、消  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

14.
The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3~4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰~ -7.8‰, PDB) and matrix dolomites (-6.6‰~ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084~0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078~0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.  相似文献   

15.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

16.
Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.  相似文献   

17.
以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.  相似文献   

18.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

19.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

20.
Quality traits in wheat (Triticum aestirum L.) were studied by quantitative trait locus (QTL) analysis in a recombinant inbred line (RIL) population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross (ChSh). Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.  相似文献   

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