So while we still have expansion and contraction, all of the components expand and contract at the same rate relative to one another.
于是哪怕仍存在热胀冷缩的现象，所有的部件发生这一现象的比率都是相同的。
Temperature contraction coefficient is a parameter for material expansion and contract property when temperature becomes high ot low.
温度收缩系数是反映材料热胀冷缩特性的参数，贫砼基层材料的温缩特性又直接影响到温度应力。
A not yet effective contract is one that has been signed but is not yet effective. It is a temporary evaluation of a contract by law and a special stage in the course of contraction.
未生效合同是指已经成立但尚未生效的合同，它是法律对合同的暂时性评价，是合同过程中的一个特殊阶段。
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