The equation of equilibrium segregation of boron to grain boundary was obtained.
建立了硼的晶界平衡集聚方程。
The main source of moisture in the sealed environment is analyzed; the formula of moisture content and equation of equilibrium are given.
分析了密封环境气氛中水分的主要来源，给出其水分含量的计算公式和水分平衡方程。
For the calculation problem of column stability set forth in this paper, there exists a trouble that the conventional solution cannot satisfy the equation of equilibrium.
对于文中列举的一道压杆稳定性计算题，其常用解法中存在着不能满足平衡方程的问题。
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