精品文献
制冷机组保养
提高制冷机组制冷量的生产实践
提高制冷机组制冷量的生产实践——我们通过制冷量衰减的原因分析，采取了相应措施，有效改善了制冷机组的运行状况。
离心式制冷机组的维护保养
is one of the pra ctical form of value s. The so-called val ues refers to the objective thi ngs are of no value and the value of fundamental perspe ctive. Different values, people's behavi our, attitudes, ways are different. People-oriente d focus on human value and reality, we nee d the br oade st masses as value s. A dhere to pe ople -oriented val ues, is t o make the economy more devel opme nt,