<正>当代中国人的"大国梦想""大国情结",虽然不是世界上最浓烈的,但也不会比任何民族淡泊。近代一百多年来,中国面临西方强势文明的压力,国家的危机与民族的屈辱频频刺激着国人敏感的神经。然而,即使在割地赔款求和甚至亡国的危难时刻,仁人志士一点也没有放弃复兴国家的理想,反而强化了固有的大国情结。今天,随着中国参与世界事务的范围和程度不断扩大,经济在国际市场上占有的份额增长,我们的大国情结也空前高涨。在现代文明里,所谓的大国、强国,并非是地域之大,资源之厚,人口之众,财富之

<正>对中国这样一个快速发展的大国,国际社会寄望我们能够多承担一点儿国际责任,在国际事务中发挥更大的作用,是情理之中的事。然而,不同的国家和国际力量,在喊"中国责任论"时,目的是不一样的。广大发展中国家对中国的快速成长,是真心欢迎、高兴,并希望中国能够在维护发展中国家的共同利益上多发挥作用。而对西方某些国家来说,喊出"中国责任论"则有双重意

<正>在现代文明里,所谓的大国、强国,并非是地域之大,资源之厚,人口之众,财富之多,武力之强,而是人民具有驾驭自然、社会与人生的杰出能力。文明的内在根基是人的文化教养,是民族的精神气质。确定准确的国家定位是制定正确的外交战略的基础,我们必须尊重两大基本事实:我国是发展中国家,我国是世界大国。一方面,我国具备发展中国家的全部特征。我国仍处在工业化、城市化、现代化的初级阶段,要成为中等发达国家尚需要数十年的艰苦努力。另一方面,我国具备定位为世界大国的各种要素。自然禀赋和经济规模不必说,政治上,我国也是具有重大影响力的联合国安理会常任理事国。

中国经济发展到今天,能源已成为制约中国经济社会发展的重要因素。作为能源行业的重要支柱,煤炭行业和电力行业的协调发展是实现节能减排和提高能源利用效率的重要前提。

The vaccum system composition and characteristics of Zimmer PET process production were introduced.Commbination with the production practice,the vaccum system common problems were analysed and summarized.The treatment and daily maintenance of vaccum system fault in PET production process was put forward.

本文尝试在与主流经济学理论的对比中,介绍新兴经济学理论的研究背景并简要评述其核心内容,从而进一步梳理这些学说的共同特征,以勾勒新世纪经济学多元化的图景,使人们对于经济学的发展有更深入的了解。

The composition and characteristics of polyester production vaccum system were introduced.The characterization methods of vaccum system operation situation was analysed and summarized.Combination with the vaccum theory,the factors that have effect on the vaccum situation in polyester production process such as the jet pump group suction capacity,liquid ring pump system,vaccum channel,EG spray condensation system,system tightness were analysed.According to the experiences in the practical production,the routine maintenance and faults treatment methods of polyester polycondensation vaccum situation were put forward.

nanometer additive was used in the synthesis of polyethylene glyoelterephalate(PET),the chips of high barrier behaviour is produced.nanometer additive can dispersion evenly in PET.all kinds of behaviour of chips and bottles was studied.

The development process of low aldehyde super bright PET chip was introduced.The methods to reduce the ethanal content in chips were expounded,such as reducing the reaction temperature,decreasing the final polycondensation liquid level properly,stopping using the recovery EG and adding stabilizer.A new production process of modified PET product was provide.