一般一个完美圆周的偏心值为0，而约有一半的系外行星的偏心值在0.25或者更高。
Where a perfect circle has an eccentricity value of zero, roughly half of exoplanets seen thus far have an eccentricity of 0.25 or greater.
白石水库倒垂孔施工，通过严格控制钻孔和保护管偏心值，保证了有效圆直径满足要求。
In the pour the nearing line project of Baishi reservoir, we guaranteed the effective round diameter meets the demands through controlling holing and partial value.
首次提出了影响矩阵的最小扭转应变能设置支座预偏心的方法，推导出了合理支座预偏心值的数学表达式。
The suitable bearing eccentricity method of influence matrix minimum torsion strain energy was presented for the first time, and the expression of the value of bearing eccentricity was educed.
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