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1.
如果用历史的参照系来衡量,解放后我国的交通运输业确实有较大的增长。但是,随着建设规模的扩大、社会生产力和人民生活的迅速提高,特别是商品生产的发展和经济改革的深化,交通已很不适应国民经济发展。与国际上先进国家乃至某些发展中国家相比,交通运输无论在需求与供给的数量上,还是服务质量上,差距都很大。为此,急需更新观念,重新认识我国交通运输业的现状与性质,真正把它放到国民经济应有的战略地位上,充分发挥它对社会主义现代化建设的推动作用。一、现状的分析与未来的预测 1.现状分析我们对交通现状总的估计是:交通运输业的市场需求与能力供应之间缺口很大;客运、货运全面紧张,矛盾十分尖锐;而且在相当长的一段时间内  相似文献   

2.
崔蕾 《当代地方科技》2011,(10):108-108,119
加工贸易目前是广东省进出口第一大贸易方式,已经成为广东国民经济的重要组成部分和推动经济增长的主要动力。本文着重分析了加工贸易对广东省对外贸易增长、就业、技术进步和产业结构四个方面的重要影响,旨在揭示加工贸易在整个国民经济中的重要地位和作用。  相似文献   

3.
交通运输业在我国国民经济中一直占据着非常重要的地位。营改增前,我国交通运输业征收营业税,然而,征收营业税存在着许多弊端制约着交通运输业的发展。通过分析上港集团在营改增前后的收入变化,指出营改增对交通运输业收入和成本的影响,并分析营改增对企业整体税负的影响。最后,在企业层面上,指出应通过建立完善的财务核算制度,加大力度开展财务人员的税务知识培训工作来促使营改增对企业产生有利影响;在政府层面应注意适当增加增值税进项税抵扣项目,提升政府服务能力以及加强对税费征收过程的监督等方面帮助营改增在交通运输业上更好的实施。  相似文献   

4.
定量地表达技术进步在国民经济增长中的地位和作用,已成为现代企业发展决策亟待解决的问题。本文从Cobb—Douglas生产函数P=AK~αL~βμ出发,建立了衡量技术进步作用的计量经济模型。并对长春市印染厂“七.五”计划期间的技术进步状况进行了实例分析,取得了较好的效果。  相似文献   

5.
交通运输业对上海国民经济影响的衡量分析   总被引:1,自引:0,他引:1  
随着经济的发展,交通运输业对于国民经济的影响程度在逐渐减弱。依托产业关联理论中的投入产出法并结合上海统计局公布的投入产出表,借助于一些衡量指标定量分析交通运输业对上海国民经济的影响,得出随着经济的发展,交通运输业的生产效率逐步提高,在交通运输网络逐渐完善的条件下其对经济发展影响的主导地位作用逐渐减弱,同时在此基础上根据海洋交通运输业在上海交通运输业中所占据的重要位置,得出海洋交通运输业产业优化升级的必要性。  相似文献   

6.
电子商务的快速发展正在推动经济增长方式的转变,电子商务对国民经济的影响越来越大。电子商务将成为我推动我们经济持续快速增长的重要驱动力。本文从经济学角度来研究电子商务是通过如何机制对国民经济增长产生影响的。  相似文献   

7.
关于公路路基施工管理工作重点的探讨   总被引:1,自引:0,他引:1  
交通运输业在我国国民经济的发展中起着重要的作用,公路工程也是交通运输业的重点工程。在公路工程中的路基工程又是其中的重中之重。要高效、高质量的完成路基工程,在路基工程当中做好施工管理工作是必要的。本文就对在公路路基施工各个过程当中的重点施工管理进行简要分析和探讨。  相似文献   

8.
交通运输业将生产、运输、流通等环节有效的联系在一起,为促进经济发展提供了有力的保障。因此,要了解甘肃省经济增长的动力,研究交通运输业和经济增长之间的关系是必不可少的。本文选取甘肃省2017年经济增长和交通运输业的相关指标在十四个地州市之间进行对比分析。并针对性的了提出大力发展航空运输业、大力修建高铁,进一步增加旅客周转量及多开发通往旅游景点的交通点等建议。  相似文献   

9.
随着我国经济的不断发展,经济的发展对于交通运输业的要求越来越高,这就要求当今我们要运用新技术来将原本被江河湖海隔断的城镇之间更直接的联系起来,加强他们之间的经济交流,改善彼此的经济交流效率。高墩连续钢构桥梁正是近年来我们重点发展的工程项目,如何做好其施工管理,已经成为当前交通运输业和建筑工程的一大课题。本文就对高墩连续钢构桥梁的施工管理的重点方面进行简单的介绍分析。  相似文献   

10.
国有中小企业在我国国民经济中占据十分重要的地位,并为国民经济的腾飞发挥着越来越重要的作用,中小企业能够促使我国国民经济整体产业结构的合理化及经济增长,日益受到各国的普遍重视,随着我国加入世贸组织后,对中小企业将产生结构性冲击和挑战,摆在中小企业面前的是一次严峻考验.  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.
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   

15.
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   

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.
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   

19.
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   

20.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

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