中国机械工业年鉴
- 网络China Construction Machinery Industry Yearbook;China General Machine Components Industry Yearbook
中国机械工业年鉴-
在此基础上，根据《中国机械工业年鉴》数据从宏观上逐项分析评估水垢造成中国冷冻机组水冷器的设备费、运行水费和运行电费3个方面的损失，总计达到每年30亿元以上。
On this bases and combined with the statistical data from China Yearbook of Mechanical Industry , the additional equipment and operating costs including water and electricity rate are analyzed respectively in detail from macro point of view . They totaled over $ 3 0 billion every year .