It also points out the adaptive condition of this tool, and tells about the role in perforating, fracture-distinguishing and cementing quality of Wells.

对仪器信号的影响因素及其测井应用进行了分析，指出了仪器的适用条件，阐述了其在射孔和裂缝识别以及固井质量评价中的作用。

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He fell prostrate in the mud with a perforating wound of the neck, with the wound exit over the tracheal area and a fracture of the trachea.

他栽倒在泥泞中，脖子上伤口形成贯穿伤，因为贯穿出口位于气管区上方，加之气管断裂。

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