毫无约束的想象不仅是实现自由也是实现真实的最强有力的保证。
The wildness of the imagination is the greatest guarantor not only of freedom, but also of reality.
混凝土热应变包括引起应力的约束应变和自由膨胀热应变，混凝土无约束监测装置的研制正是为了在实际监测中区分出自由应变和约束应变。
Hot strain of concrete includes constrained strain of causing stress and free expansion strain, and then the unconstrained concrete device is designed just for distinguishing them.
对于特定的线性几何约束条件，通过对约束条件下的初始自由度进行转换，将有限元方程转换为少自由度的无约束方程进行求解。
For certain geometry constraints, by transforming the constrained degrees of freedom, the reduced unconstrained degrees of freedom finite element solution was obtained.
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