The link line is no longer there between the keys since the relationship is now a complex expression that goes beyond linking items from one query subject to another.
键之间的连接行已经没有了，因为现在关系已经是一个复杂的表达式，而不是在查询主题之间连接项目那么简单。
The link line of the points whose pore water pressure equals zero in the field that is got after the calculation is the seepage line.
计算结束后得到的渗流场孔隙水压力为零的各点的连线即为浸润线。
The link line of the points whose pore water pressure equals zero in the field that is got after the calculation is the seepage line.
计算结束后得到的渗流场孔隙水压力为零的各点的连线即为浸润线。
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