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分析了R12和R134a的特性,提出了某R12系统改用R134a的操作方法.
R12制冷系统改用R134a的操作方法
【摘 要】
：
分析了R12和R134a的特性,提出了某R12系统改用R134a的操作方法.
【机 构】
：
广州航海高等专科学校总务处
【出 处】
：
咸宁师专学报
【发表日期】
：
2002年3期
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