The soup is heating slowly.

汤在慢慢加热。

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Slowly cooling method for glass articles, heating method for glass articles, production method for glass formed articles and heat treatment apparatus.

玻璃物品的缓冷方法，玻璃物品的加热方法，玻璃成形品的制造方法，以及热处理装置。

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The process of annealing consists of heating the steel to an elevated temperature for a definite period of time and, usually, cooling it slowly.

退火工艺的组成为把钢加热到一定温度并保持一段时间，通常再缓慢冷却。

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