从第一周期开采过程看，注汽效果较好。
The first period of production shows that the result of steam injection is good.
矿产资源勘查开采过程具有周期性、反复性和渐进性的特点。
The process of mineral resources exploration and exploitation has periodic, progressive and repeated features.
原油开采过程主要分为勘探、钻井、采油、井下作业和输送。
Crude oil extraction process is mainly divided into exploration, drilling, production, and distribution of underground work.
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