All the conventional vibrators use the sweep signal of which the instantaneous frequency shows linear change with time.

常规可控震源都是采用瞬时频率随时间线性变化的扫描信号。

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All the conventional vibrators use the sweep signal of which the instantaneous frequency shows linear change with time.

常规可控震源都是采用瞬时频率随时间线性变化的扫描信号。

youdao