In view of acoustic log of thin bed, a thick bed clipping thin bed model of constant well diameter was designed.

针对声波测井中的薄层问题，设计了井径不变情况下的厚层夹薄层模型。

youdao

We got a chance to look closer at the interesting finding… They are approximately of the same size - about one meter in the diameter and in the height as well.

现在，我们有机会与这个有趣的发现进行近距离的接触……它们都近似于同一型号——直径、高度均有一米左右。

youdao

Other designs have a circular cutout in the middle that corresponds to the diameter of the pipe in the hole to seal the well when pipe is in the hole.

其它类型的设计则在中间有一个圆形的剪切块，使其适合井眼内管柱的直径以便当管柱位于井眼内时能够密封井眼。

youdao

If approved by Lancashire County Council the well will be 8.5in (22cm) in diameter and extend approximately 1km from the current vertical well, more than a mile beneath the surface.

BBC: Fracking firm Cuadrilla plans new well at St Annes site

The Siding Spring Observatory, located high in a remote area, is home to Australia's largest optical telescope, the 3.9m diameter Anglo-Australian Telescope, as well as several others.

BBC: News - Australia bushfire destroys homes and damages observatory

GPS, which uses signals from satellites, only works well outside and its co-ordinate system only identifies areas down to a few metres in diameter.

BBC: Let your text messages linger