1·For its powerful functions, the system can be widely applied to geological exploration, coal field well logging, shallow oil-well exploration, engineering geological exploration and so on.
该系统以其强大的功能，可广泛用于地质勘探、煤田测井、浅井石油勘探、工程地质勘探等各个领域。
2·Through the practices in Fuxin coal field, the author estimated objectively the features and effects of JXW—1 PC—based Digital Logging System, and made some extension and modification on the system.
通过阜新煤田的实践，客观评价了JXW-1型微机数字化测井系统的性能及应用效果，并对该系统做了某些扩展与改进。
3·The formation and harm of spontaneous combustion in coal field are generally described.
煤层自燃形成的煤田火区是煤矿区重要灾害之一。