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[名人之言] ·伟大的人物在饮食上总是有节制的。——巴尔扎克(1779~1850,法国作家) ·我们不是为了吃而活着,而是为了活着而吃。——苏格拉底(公元前469~399,古希腊哲学家) ·任何一次过量摄食,就是得上一场病。——谢涅卡(约公元前4年~公元65年,罗马哲学家、作家) 相似文献
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钱青 《内蒙古科技与经济》2001,(6):96-97
1 前言履带推土机的稳定性是衡量整机工作性能和安全的重要指标之一。目前有关研究大多集中在静态稳定性上 ,即研究确定推土机静止、匀速运动或稳定作业时不发生倾翻 ,滑移的极限 ·倾·翻·角和·滑 ·移·角。由于推土机重心和速度较低 ,且为整体车架结构 ,设计时一般均能满足稳定性条件。但推土机在行驶或作业过程中 ,由于作业工况和地形条件不断变化 ;车辆所受载荷和车速均处于不断变化之中 ,产生附加惯性力 ,惯性力的出现 ,破坏了静态稳 ·定 ·性·条 ·件 ,一般情况下是降低了静态稳定。此外由于人——机工程学的发展 ,在不倾翻、滑… 相似文献
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《科学.经济.社会》1988,(6)
改变甘肃落后面貌的基本思路························································……”··……贾志杰(1·1)领导与决策··························································································……冯之凌(5·257) ·论坛·构想与实践······················································… 相似文献
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《科学.经济.社会》1989,(6)
关于建设黄河上游经济开发试验小区的若干间题·············,··································……贾志杰(1.1)·论坛·论生产力标准与思想政治工作························“···········································……庞道沐(3.129)宜新认识以农业为基础的战略地位···················”··········································……吴… 相似文献
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《科学.经济.社会》1990,(6)
牢固树立持续稳定协调发展经济的指导思想本刊编排部(1·1) ·论坛·我月西北太阳能资源的开发利用展望····························································……黄河上游的一支“火炬’ ·专论·我国边缘地带的社会文化现象与生态经济学分析·································……张维祥关于城市科技、社会协调发展的思考·······················……””””’‘”””””’‘”’‘””‘””’‘在抬… 相似文献
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《科学.经济.社会》1992,(4)
二,·大胆推进改革开放加快甘肃省经济建设步伐顾金池(2·1)·专论·江河开发治理与经济发展·············································……江建敏白卫星(1·1)完整准确地理解邓小平改革开放思想的儿个问题···························……徐洋(2·6)上海浦东新区高新技术创业发展构想··········································……肖元真(3·1)关于扩大对外开放与搞活国营大中型企业的几个问题·······… 相似文献
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《资源科学》1986,(4)
一厂‘,第一期’中国热带、亚热带山区植物资源特点和开发利用中应注意的问题········································……江爱良我国水资源的开发利用问题及其对策········一狱··…,’’’·,1’··························.’...……任光照杨继于我国的漆树资源及其合理利用途径······.·..·...……::................. .....……,.....……,.............……皖南山区国土资源开发利用与整治初探·········……湘西土地资源综合开发问题,… 相似文献
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《科学.经济.社会》1987,(6)
新年寄语············································,····················,································‘······……(1.1)社会学家费孝通教授关于扶贫和发展商品生产的几点意见·····························,····,··,····……(1.2少建立专业市场是促进农村商品生产发展的有效途径·····,··························,·········……侯宗… 相似文献
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