油田原理脱水处理的顺序和方法？
参考答案：
1.破乳和沉降；
2.热化学脱水，重力沉降脱水，电脱水。
补全对话。
Tom: Hi, Fred. Where are you going?
Fred: To the playground.
Tom: What 1_____ you 2 _____ play?
Fred: We 3_____ play football. 4 _____ you 5_____ play with us?
Tom: No. 6 _____ study. There is an examination tomorrow.
Fred: Oh, that's too bad. Our examination is next week. I 7_____ study tomorrow.
Tom: OK. See you, Fred.
Fred: See you.
锅炉上水时，对水温及上水时间有何要求？
