It will have you sleeping in no time. If you do better with meditative visualizations that are narrated, try my Stress Release CD.

这样你就可以在任何时候就可以入睡了。假如你还未对这种冥想有个清晰化的了解的话，请去看看我做的减压CD。

The project is presented in real time, and narrated throughout.

该项目是实时呈现，并在整个叙述。

Importance is narrated that already existed the well head mechanical unit in rig, only if when Provided well head mechanical unit, obtains on safety, time saving, working saving.

叙述了改进已有钻机井口机械化装置的重要性，指出钻机上只有通过配套井口机械化装置，才能在安全、省时、省工等方面取得突破。