Objects expand when heated and contract when cooled.
物体热则涨，冷则缩。
The emergence of superconductivity in certain metals when cooled below a critical temperature is an example of a phase transition.
当温度降至临界温度以下，某些金属会突然失去电阻，出现超导现象，这就是相变的一个例子。
Practically all substances expand when heated and contract when cooled.
几乎所有的物质都是热胀冷缩的。
It is a common physical phenomenon that substances expand when heated and contract when cooled.
物体遇热膨胀，遇冷收缩，这是一种普遍的物理现象。
Metals expand when heated and contract when cooled.
各种金属遇热膨胀，受凉收缩。
Generally, all objects expand when heated and contract when cooled.
物体一般都有热胀冷缩的性质。
The property the air has of taking up a great amount of water when heated and giving it out when cooled, is the cause of our clouds and rain.
空气所具有的这种热时吸收，冷时放出大量水汽的性能，是云和雨生成的原因。
The basic concept of injection molding revolves around the ability of a thermoplastic material to be softened by heat and to Harden when cooled.
注射成型的基本概念是使热塑性材料在受热时熔融，冷却时硬化。
When cooled, the manganese-containing oxide remained in this alternate structure.
在冷却之后，含锰的氧化物仍然留在这个改变的结构中。
When cooled, the manganese-containing oxide remained in this alternate structure.
在冷却之后，含锰的氧化物仍然留在这个改变的结构中。
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