Its latest device, the NGP (Next Generation Portable), is also packed with new technology, such as a touch screen and touch-sensitive back casing.
其最新设备NGP(下一代掌机)也采用了各种新技术,如触屏和触摸式背壳。
The device guides the casing toward the center of the hole and minimizes problems associated with hitting rock ledges or washouts in the wellbore as the casing is lowered into the well.
该装置引导套管居于井眼的中心,减少下套管过程中套管撞击井眼内突起的岩石或井眼冲刷的地方。
A device used to hold plugs until they are released and pumped down the casing during cementing operations.
一种装置,用于在注水泥作业过程中悬挂胶塞,直到将其释放并在注水泥作业中沿套管内泵入。
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