I used a skewer to make an extra hole in my belt.
我用扦子在腰带上又打了一个眼儿。
In addition, there is usually a small amount of extra hole drilled to allow for junk, hole fill-in and other conditions that may reduce the effective depth of the well prior to running logging tools.
除此之外,考虑到在下入测井工具之前可能降低井眼有效深度的井底碎屑、井眼充填和其它条件,通常还要钻进一段额外井眼。
For certain models, small perturbations to the extra dimensions would probably cause all the black holes and strings to ultimately merge into one giant black hole.
对于某些模型,对额外维度的微小扰动,就可能会导致所有的黑洞和黒弦最终合并成一个巨大的黑洞。
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