...型号: MQ-PAR38A 品牌: Metch 原产地: 中国 产品描述: 1.0: 特点及使用范围 (Features&range of application) 1.1 输入电压(Input voltage):90-264VAC 50/60H Z 1.2 隔离恒流输出(Isolated..
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介绍了作为实心粘土砖替代品的混凝土砌块的特点及使用范围。
In this paper the characteristics and application scope of concrete block as substitute of solid brick are introduced.
重点阐述了铝、铜合金铸件生产中较常应用的五种浇注时间计算公式的特点和存在的不足,分析了这几种公式在各自的材质铸件使用范围内出现的缺点及不足。
Features and shortcomings of five popular formulas for calculating pouring time in al, cu alloy casting product are described. Every formula's shortcoming in its material range is analyzed.
介绍了YLQ - 80 0新型液压推溜器的使用范围、主要技术特征、工作原理、操作方法及特点。
The use range, chief technology characteristics, operation principles and characters of YLQ-800 hydraulic propeller are introduced.
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