However, as its name suggests, it runs parallel to the surface of the material that is propagating it, rather than penetrating this material.

然而正如它的名称所提示的，它本身是与传播材料的表面呈平行移动的，而不是穿透传播材料。

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Let's break the name down. The "normal" is a vector perpendicular to a surface, which we can use to calculate lighting.

首先我们从名字上开始分析，所谓“法线”指的是垂直于平面的向量，我们使用这个来计算光照。

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It is now just 70 metres from the surface and islanders are already trying to come up with a name for the new island.

现在它距离海平面只有区区70米，岛上居民已经试着给将要出现的小岛起名字了。

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The Surface with Windows 8 Pro (its official name) does include several upgrades over the Surface RT.

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Jordan's name began to surface last week, after Dan Hurley received a contract extension from Rhode Island and elected to stay at the Atlantic 10 school.

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However, as its name suggests, it runs parallel to the surface of the material that is propagating it, rather than penetrating this material.

ECONOMIST: Solar energy