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介绍、分析了2007年我国钨品进出口总量、总额、价格、品种、市场,展望了2008年我国钨品进出口市场形势,预期2008年我国钨品进出口总量将继续回落,钨市场价格将继续保持总体平稳、小幅震荡的走势。 相似文献
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介绍了2005年我国出口钨品的数量、金额、价格、品种、市场以及我国进口钨品的概况,展望了2006年国际钨市场形势。 相似文献
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出口下降 进口增长——2008年我国钨品进出口分析 总被引:2,自引:1,他引:1
介绍并分析了2008年我国钨品进出口总量、总金额、价格、品种及地区分布,展望了2009年我国钨品进出口市场形势,认为2009年全球金融危机将继续拖累全球经济增长,并影响钨市场的供需格局和钨业经济的增长,但随着市场需求恢复,钨市场价格趋稳回升是必然趋势。 相似文献
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简要介绍了2006年上半年我国钨品的生产情况、进出口情况,国内、国际钨市场价格走势,以及近期市场热点。 相似文献
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介绍了2006年上半年我国钨品出口的数量、金额、价格、品种结构、各大市场所占份额,以及我国进口钨品的基本情况,对当前及今后的钨市场形势作了简要的分析与预测。 相似文献
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介绍了2006年前三季度我国钨品出口的数量、金额、价格、品种结构、各大市场所占份额,以及我国进口钨品的基本情况,并对钨市场形势作了简要的分析与预测。 相似文献
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进出口量大幅下降 市场价格低位震荡——2009年上半年我国钨品进出口分析 总被引:1,自引:1,他引:0
2009年上半年,我国钨品进出口贸易继续受到国际金融危机的冲击,市场需求继续萎缩,进出口量大幅回落,市场价格低位震荡。当前,全球经济复苏迹象明显,国际市场钨需求开始有所恢复,国内经济企稳回升,国内市场钨需求保持稳定。预计下半年钨品进出口量将恢复性增长,钨市场价格有望企稳回升。 相似文献
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2008年上半年,受钨品出口关税上调、美元继续贬值和世界经济动荡影响,钨品出口贸易企业经受了严峻的考验和挑战,宏观调控政策效应凸显。钨品出口量大幅回落,进口有所增长,国际钨市场价格基本平稳,出口产品结构继续发生变化。下半年,钨品出口量将继续保持回落,钨品进口量将继续保持增长态势,国际钨市场价格将继续保持平稳、小幅震荡走势。 相似文献
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倪志安 《Canadian Metallurgical Quarterly》2011,23(3)
马克思主义唯物论是一种物本主义形态的唯物论,还是一种超越物本主义形态、从实践理解世界的本质相关问题的实践的唯物主义的唯物论?这是一个我们必须搞清楚的有关马克思主义唯物论的本质规定性和精神实质的重大问题.在考察物本主义的唯物论及其思维方式的局限性的基础上,揭示了马克思主义唯物论是现代的、实践的唯物主义,并重点研讨了马克思主义唯物论关于从实践理解世界的物质性和自然世界的先在性的原理,以期为马克思主义唯物论进一步阐明人类世界的实践性原理奠定基础. 相似文献
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D. N. Reznikov 《Metallurgist》1962,6(12):535-537
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The data are presented on changes in the rat arcuate nuclear neuron ultrastructure after using cyproheptadine (peritol, Egyt Pharmaceutical Works, Hungary) in a water suspension at a dose of 20 mg/kg once daily during 7 successive days and twice a day within 10 days. It was shown that cyproheptadine decreases the functional activity of the arcuate nuclear neurons, depending on the total amount of the drug used. Cyproheptadine-induced inhibition of the forming neurohormone release from neurons is likely to be one of the mechanisms of its therapeutic effect in Itsenko-Cushing's disease. 相似文献
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Vasomotor responses from the nasal mucosa and tongue, and contractions of the nictitating membrane, were recorded on stimulation of the cervical sympathetic or internal carotid nerves. Preganglionic sympathetic nerve fibres which elicited a membrane response possessed a lower threshold than those which evoked nasal vasoconstriction, while the latter displayed a lower threshold than fibres which evoked tongue vasoconstriction. The sympathetic vasodilator fibres to the tongue whose activity was revealed after alpha-receptor blockade, had a similar threshold to the vasoconstrictor fibres. Membrane contraction, nasal vasoconstriction and occasionally tongue vasoconstriction could be evoked by stimulating the internal carotid nerve. The postganglionic fibres innervating the nasal mucosa had a similar threshold to those of the nictitating membrane, which may indicate that there are small myelinated fibres innervating the mucosa. The preganglionic compound nerve action potential had four major components, S1-S4. S1, S2 and usually S3 fibres were associated with membrane contraction; S2, S3 and sometimes S1 fibres were associated with nasal vasoconstriction; and S3, usually S2 and occasionally S1 fibres were associated with vasoconstriction in the tongue. It is concluded that each of these three groups of nerve fibres, but not S4 fibres, may include fibres associated functionally with the three effectors. There was a considerable difference between the relative amplitude of the responses of the three effectors elicited by stimulation of the cervical sympathetic nerve at frequencies between 0.2 and 2 Hz. Vasoconstrictor responses were relatively larger than membrane contractions suggesting differences in the mechanisms of neurotransmission at the neuroeffector junctions. 相似文献
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