It conducts heat very well, its enameled surface does not discolor foods, and it is easy to clean.

搪瓷铸铁很容易导热，搪瓷表面也不会使食物脱色，而且还很容易清洗。

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To do so, he does not cause surface layer and cement mortar is inconsistent, surface water mud too much, easy to the problem of craze.

这样做，就不致造成表面与里层砂浆配合比不一致，表面水泥浆太多，易于开裂的问题。

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Used as a step stone, for example, the surface should be flat and rough, this kind of stone is convenient to walk, is not easy to damp.

例如，用作阶梯的石头其表面要平且粗糙，这种石头方便走路，潮湿的时候也不容易滑到。

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In theory, to unscramble the signal completely you need two things: good computers and, not so easy, a second infinitely large surface, this time covered with radio telescopes.

ECONOMIST: Pulsars: In a wink | The