有的肿块长期静止不变，有的体积增大或溃破。
Some tumors remain stationary indefinitely, whereas others increase in size, or break down.
溃坝问题，严格来讲，是一种不连续洪水波问题。
Dam-bursting, strictly speaking, is a problem of non-continuous flood wave.
这一结果表明，数学模型在研究溃坝波方面是可行的办法。
This result shows that mathematical model is a possible approach available for dam-break wave research.
这一结果表明，数学模型在研究溃坝波方面是可行的办法。
This result shows that mathematical model is a possible approach available for dam-break wave research.
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