Through composite method of geological, log, seismic and core analyses, depositional system of Eogene Liushagang Fm in Fushan sag has been studied.

运用地质、测井、地震及岩芯等综合方法，对福山凹陷下第三系流沙港组的沉积体系进行了研究。

youdao

The code bellow defined CreateFile and CopyFile two classes, use Command patten and Composite patten log requests, and support undoable operations.

下面的例子定义了 创建文件 和 拷贝文件 两个类，使用命令模式和组合模式记录日志，并实现逆操作。

youdao