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.
来源:互联网摘选物理风化: 热胀冷缩 、 冰楔作用 、 剥离作用和晶体生长.
来源:网络文摘精选That substances expand when heated and contract when cooled is a common physical phenomenon.
物质热胀冷缩是一种普通的物理现象.
来源:互联网摘选Water does not always follow the rule that Everything expands when heated and contracts when cooled.
水并不总是遵循物质热胀冷缩的规律.
来源:互联网摘选The utility model is not affected by and cold contraction anda long service life.
本实用新型不受热胀冷缩的影响,使用寿命长.
来源:互联网摘选Simultaneously may the sensation expand with heat and contract with cold phenomenon existence.
同时可感知热胀冷缩现象的存在.
来源:互联网摘选The organizational structure is even and the expansion and shrinkage coefficients are small.
组织结构均匀,热胀冷缩系数小.
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