论文部分内容阅读
对保幼皆伐设保留带的几点探讨
【出 处】
：
大兴安岭科技
【发表日期】
：
1993年2期
其他文献
Modeling and Simulation of the Microstructure Evolution during a Cooling of Immiscible Alloys in the
The microstructure development during a cooling period of alloys being immiscible in the liquid state such as AlPb or Al-Bi has gained renewed scientific and te
The giant stress-impedance (GSI) effect in amorphous and current annealed Fe73.sCu1Nb3Si13.sB9 ribbons has been investigated. The results showed that the GSI ef
The basic mechanical behaviors of high density polyethylene electrofusion welded joint at different temperatures were studied by using differently designed spec
The recent development in the field of nanocomposite coatings with good mechanical properties is critically reviewed in this paper. The design principle and mat
The dynamic mechanical properties of open-cell aluminum alloy foams with different relative densities and cell sizeshave been investigated by compressive tests.
地理实践力是地理学科核心素养的重要组成部分。伴随地理学科核心素养的重视程度不断提高,对地理实践力的培养与评价也成为地理教育领域研究的重要课题。文章依据《普通高中
法制一词,从古至今,人们对其内涵有不同的理解.目前,法制通常"泛指国家的法律和制度.法律既包括以规范性文件形式出现的成文法,如宪法、法律和各种法规,也包括经国家机关认可
对成本的有效控制是施工企业增加盈利、实现企业持续发展的基础。针对传统成本管理中存在的问题,对施工项目成本控制的原则所进行的分析可以为工程项目施工中的成本控制提供