The stability of a tippe top rotating on a slightly rough horizontal plane is considered in this paper.

本文讨论微粗糙平面上翻身陀螺绕直立的极轴永久转动的稳定性。

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Cultured and natural pearls will feel slightly rough , like fine sandpaper , because of the texture of natural nacre.

天然珍珠和人工养殖珍珠会有些许粗躁的感觉，如同细砂纸般，那是真珠质的天然触感。

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A solution is put on the tooth that makes the surface a little rough. (it is easier for the sealant to stick to a slightly rough surface.)

在牙齿上涂上一层溶液，使得牙齿表面变得一点点粗糙。(保护胶更容易在有点粗糙的表面粘牢)。

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The unmanned Rifugio Manzini hut, a couple of hundred metres down the mountainside and built out of the rough and beautiful local stone, is slightly more sheltered but conditions are almost as spartan.

BBC: Italy��s wilderness, far from the madding crowds

The calculation is rough and ready, and I come to slightly lower numbers than Allwood and co, but the point is that this measurement uses a unit we're familiar with - us.

BBC: Go Figure: Why does every person need 200kg of steel a year?

In a simplistic and very rough calculation, that comes to 200 more branches being sold off - or a chunk slightly larger than Lloyds TSB Scotland.

BBC: Banking on the future