ZKQ 出品 必属精品 1 目录 第一章 工程概况 ····················································1 一、设计对象 ··················································1 二、原始资料 ··················································1 第二章 设计内容及计算 ···········································5 一、确定制冷系统总制冷量 ·································5 二、确定制冷剂种类和系统形式 ····························5 (一)确定制冷剂种类 ··································