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- The result of field application shows that this profiled control agent can improve steam entry profile of oil layer, shorten drainage period, and increase cyclic production. 现场应用结果表明:该类调剖剂具有改善油层吸汽剖面、缩短排水期、提高周期产油的效果。
- pre - drainage period 预抽期
- He came to look at the drainage. 他是来检查排水设备的。
- The pre - christmas period be always very busy . 圣诞节前这一段时间总是很繁忙的。
- The drainage system has been aged. 排水系统已经老化了。
- That period was a bright page in the history of Chinese literature. 那个时期是中国文学史上光辉的一页。
- Let us hope that the period of this injustice will be over soon. 让我们希望这个不公正的时期很快结束吧。
- Quite a lot of order come in the pre christmas period. 许多订货是圣诞节前来的。
- Childhood is a period of rapid growth. 幼年是生长迅速的时期。
- He consulted the chronicles of the period. 他参考了这一时期的编年史。
- These items were seld well in the pre - christmas period. 这些商品圣诞节前销路好。
- He had to decide within a given period. 他得在一定时间内作出决定。
- She has a detailed knowledge of this period. 她对这段时期的情况了解地相当详细。
- The drainage of the town is not good, some of the pipes are broken. 城里的排水系统不好,有些水管断裂了。
- In that period auto sales hit a14-year low. 这时期汽车销售量达到14年来最低水平。
- In this period, unemployment reaches record levels. 这段时间的失业人数又达到了创纪录水平。
- Which period of history are you studying? 你正在学哪一段历史?
- Cook the pie for 20 minutes in a pre heated oven. 在经过预热的烤箱里烘烤馅饼20分钟.
- These items were seld well in the pre - christmas period . 这些商品圣诞节前销路好。
- Can you tell me the time period when it was stolen? 能不能告诉我大概什么时候被偷的?