jìng jié 1.直接拦取。 2.犹便捷。
截水环：防止集中渗流，在外围设置，以改变水流方向，增加渗径，减小渗流。
Section water ring: prevent concentration in the peripheral Settings, seepage, to change the direction of flow, increasing permeability diameter, reduce the seepage.
那是守猎人，他站在狭径中好象巴蓝的驴子，截著眼也的去路。
It was the keeper. he stood in the path like balaams ass, barring her way.
此时的最优扩径结构长度上变短，对变刚度结构前部扩径薄壁管截短的影响进行分析。
At this time, the optimal expanding structure get shorter, so the influence of the truncated thin-walled tube is analysed.
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