Pressure tunnel used more round section.
有压隧洞多采用圆形断面。
Each people all are section of arcs, can add up to round two people!
每个人都是一段弧，能凑成一个圆的两个人！
Lack a clear round, in the love section constantly repeat.
隂晴圆缺，在一段爱情中不断重縯。
Take diagonal section cut a round graduation technique.
取斜向后分区剪圆形堆积层次。
Cut a round line which disconnected from the bottom by taking diagonal section.
取斜分区，修剪一个斜线条与底部不连接。
Cut a round line which disconnected from the bottom by taking diagonal section.
取斜分区，修剪一个斜线条与底部不连接。
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