如何建立压缩机油路循环？
参考答案：
1、润滑油箱建立正常液位，保证机组启动时正常温度，油温35~45℃。
2、检查主油泵和辅油泵，出口压力应不小于0.5MPa，润滑油经减压，以0.08~0.15PPa的压力进入轴承。
3、投用润滑油冷却器，始终保证油温在35~45℃，一开一备。
4、投用润滑油过滤器，运行一台，备用一台。
5、向高位油槽上油，高位油槽一般应准备不小于5min的供油时间，保持高位油槽溢流状态，建立循环。
| 选用所给句子完成对话。 | |
| A: 1 What did you do today? B: We planted trees just now. A: Oh, I have remembered. 2  where did you work?B: At the foot of the hill. A: The one on the other side of the river. B: How did you get there? B: On foot. 3 . A: But what made your clothes so dirty? B: I fell into the river when I was carrying some water. A: Bad luck! You’d better go to see a doctor B: 4 The river isn’t deep and only my shoes are wet through. A: 5 . B: Thanks a lot. I’ll  do.
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