对奥迪轿车零件翻孔端部直径偏小的分析结果表明，其主要原因是材料变薄及回弹所致。

The main cause of too small flanged hole end diameter on parts of the Audi car has been found by analysis to be thinning of blank material and rebound.

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不同于让光线透过，相反地，通过纤维光缆的一端，纳米孔会将光线反射回去，极有效地将振动膜变成一面镜子，即便水流可以通过。

Instead of letting it pass, the holes would reflect the light back toward the tip of the fibre optic cable, effectively turning the diaphragm into a mirror even as it still allowed water to pass.

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若是冷却器垂直安装，起吊孔在端盖上。

If the cooler fixs vertically, the ring hole on the cover.

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