The sand bailer is also used as a bottom hole sampler.
捞砂筒也可用作业井底取样器。
The device can move the seal part from the bottom hole to the wellhead.
该工具将密封部位由井底移至井口，适用于各种规格的大直径套管固井。
One of them has a small hole on its bottom.
它们中的一个底下还有一个洞呢。
I noticed there was a hole in the bottom of his pail.
这时我注意到，他那水桶的底下有一个窟窿。
They sank the barge by making a hole in the bottom.
他们在驳船底部打个洞把它弄沉了。
At the bottom there is a drain hole edged with a brass eyelet.
在底部有一个镶了黄铜小孔的排水孔。
A conductive member contacts the upper electrode on a bottom of the via hole.
导电元件在通孔底部与上电极接触。
The bottom surface is bonded with adhesive paper to cover the through hole.
所述底面粘设有胶纸，以遮盖所述通孔。
The bottom surface is bonded with adhesive paper to cover the through hole.
所述底面粘设有胶纸，以遮盖所述通孔。
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