the expansion and contraction of the metal

金属的膨胀与收缩

《牛津高阶英汉双解词典》

The best resistance to expansion and contraction, long life force.

耐伸缩力最佳, 寿命长.

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A reading of 50 is the dividing line between expansion and contraction.

而指数50就是扩大生产和收缩生产的分界线.

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The expansion and contraction which most substances undergo on changing temperature is familiar to us all.

多数物质温度一变化就会产生膨胀或收缩,这是我们大家所熟悉的.

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Expansion and contraction are two kinds of basic ways in enterprise's running. "

扩张与收缩是企业运动的两种基本方式.

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To demonstrate expansion and contraction of solids at physical experiments in middle school.

中等学校热学演示物体热胀冷缩实验用.

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