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在工科教学中,工程知识碎片化严重影响了学生的学习效果,阻碍了对工程知识的有效建构。应强化知识综合,不断关联工程背景、相关学科知识。工程专业的学习置于工程问题空间,将工程问题贯穿于工程知识建构过程,以解决工程问题为导向。采用探究式学习方法,将知识学习与研究问题相结合,以分析、研究和解决工程问题的过程为平台,进行工程知识的关联与综合,帮助学生实现工程知识的整合与重构。 相似文献
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王志健 《冶金设备管理与维修》2000,18(2):40-41
简要阐述了价值工程在检修工程预算中的重要作用,并以唐钢高速线材厂214m^2步进式加热炉大修工程为例,探讨了价值工程在审查检修工程中的应用。指出运用价值工程审查检修工程预算一能确保工程的功能不受损害,二能有地降低工程成本。 相似文献
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在滇西岔河离子吸附型稀土矿调查评价、普查的基础上,对中山地貌区离子吸附型稀土矿探矿工程的布置与编号方法进行了总结。预查阶段不必按照勘查网布置探矿工程,探矿工程用“工程类型代号+施工顺序的流水编号”的方法进行编号。普查第一阶段的探矿工程数量占普查阶段总数的1/3~1/2,按矩形网布置探矿工程,用“工程类型代号+主勘查线编号+次级勘查线编号”的方法进行探矿工程编号。普查第二阶段的探矿工程数量占普查阶段总数的1/2~2/3,按树形网布置探矿工程,用“工程类型代号+树枝编号+树枝上的探矿工程编号”的方法进行探矿工程编号。详查、勘探阶段在普查第二阶段树形网的基础上增加探矿工程,探矿工程编号的方法与普查第二阶段相同。研究中山地貌区离子吸附型稀土矿的探矿工程布置与编号方法,有利于合理地布置和管理探矿工程,最大限度地发挥探矿工程对矿体的控制作用。 相似文献
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实验结果表明,M17铸造高温合金(%:0.16C、8.79Cr、5.79A1、4.93Ti、3.29Mo、15.20Co、0.78V、0.015B、0.073Zr、0.002S、0.001P、0.001 1O、0.001 0N)经25 kg真空感应炉返回重熔后,Si含量随重熔次数的增加而略有增加,合金中主要元素和其它杂质元素S、P、H的含量变化不大,而氧、氮略有增加;合金中初生碳化物由新合金中的草书体逐渐向返回合金块状转变,初生碳化物的遗传性堵塞合金凝固时的补缩通道,使返回料合金的疏松倾向增大,高温塑性下降较大。 相似文献
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正Shijiazhuang City will build the world’s biggest replacing-copper-with-aluminum cable production base,the annual output value can reach 100 billion yuan,in the future it will develop replacing-copper-with-aluminum highend industry cluster.This piece of news was learned by the reporter at the Rare Earth highiron Aluminum Alloy[Nonferrous Business Opportunity:Aluminum alloy door]Cable Conductor New Technology Application Seminar held at the provincial capital. 相似文献
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《China Nonferrous Metals Monthly》2014,(12)
正Since the beginning of Chongqing’s upgrading to a municipality directly under the Central Government,Chongqing City has established direct friendly relationship with Almaty,Kazakhstan,and carried out a series of cooperation in commerce and trade,and culture 相似文献
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《China Nonferrous Metals Monthly》2014,(10)
正"For each tonne of aluminum being produced,the upstream enterprise on the aluminum industrial chain will suffer loss about 2000yuan."Said Liang Xiao,Deputy Director of Pingguo Industrial Park Management Committee under the Guangxi Baise City,one of the four major aluminum industry bases in China,on August 11.Extending aluminum 相似文献
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正Immediately after the news that Chinalco transferred 58%stock equity of Yunnan Copper Group to its wholly-owned subsidiary China Copper Corporation Limited free of charge was disclosed on July 9,many individual investors couldn’t help but to think:Does it mean China Copper Corporation Limited will assemble assets for overall listing?At present,among main copper business companies under China Copper Corporation 相似文献
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正At the press conference recently held by the National Development and Reform Commission under the theme"Deepen Reform in Investment AuditApproval System",when answering questions from reporters,Huang Min,Director of the Department of Fixed Assets Investment of the National Development and Reform Commission,said that in the future it would continue to intensify efforts in geological prospecting,and actively guide social capital to enter this field. 相似文献
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正Recently,Guangxi Metallurgical Research Institute,a subsidiary of Guangxi Nonferrous Metals Group,completed survey on laterite and related manufacturers in the region,by combining the current development status of laterite both at home and abroad,it compiled Guangxi’s first"Research Report on the Development of Guangxi Nickel Industrial Chain"which adopted laterite as the study subject.This report expounded on the current 相似文献
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