在运行条件下实测燃气轮机轮盘和叶片的振动特性，是燃气轮机参数测量中最困难的问题之一。
The measurement under gas turbine operating conditions of disk and blade vibration characteristics constitutes one of the most difficult problems in gas turbine measurement techniques.
阻尼最小二乘法在较差的初值条件下能有效运行，并能克服系数矩阵奇异时的迭代困难。
Damped least-squares method can work successfully at a relatively poor initial value, and it can overcome the recurrence difficulty caused by the singular coefficient matrix.
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