三种方法：目测法、量测法和试验法。

The three main methods are eye survey, measurement and test.

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介绍了一种下山法成型及下山量的计算方法。

A kind of down hill forming and calculation method of down hill amount are introduced.

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介绍了一种下山法成型及下山量的计算方法。

A kind of down hill forming and calculation method of down hill amount are introduced.

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