使用合适的功率放大器驱动激励线圈，是实现基于磁致伸缩效应无损检测技术的关键环节。
It is important to apply a suitable power amplifier to drive the transmitting coil in magnetostrictive nondestructive testing (NDT).
使用合适的功率放大器驱动激励线圈，是实现基于磁致伸缩效应无损检测技术的关键环节。
It is important to apply a suitable power amplifier to drive the transmitting coil in magnetostrictive nondestructive testing (NDT).
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