在大型堆取料机安装过程中，旋转机构安装误差控制及其调整是一个十分重要的环节。
In the installation process of huge stacker reclaimer the error control and adjustment of the installation of revolving gear is an important link.
钻井工程非勘探开收石油取地然气资流的一个从要环节。
Drilling project is an important tache for the exploration of oil and gas resources.
文中介绍了系统取心的施工过程，通过详细分析取心的各个技术环节，总结出松散地层取心经验。
The paper presents the operational process of systematic coring, and sums up the experience of coring in the unconsolidated formation from analyzing each technical links in the coring.
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