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讨论了第二层次跟踪轴线长度的温度天扰性,引入“骨架热协变”概念。给出了结晶熔融相变的一个重要的微观形成因素和晶胞参数热膨胀差异的形成机理。
The temperature nuisance of the second-level tracking axis length is discussed, and the concept of “thermal covariance” is introduced. The formation mechanism of an important microscopic formation factor and the difference of thermal expansion of the unit cell parameters is given.