megacycle造句更新时间：2026-02-15 21:15:54复制 megacycle造句 1、An acoustic-emission pulse contains a very wide range of frequency components, extending up into themegacycle range.(声发射脉冲就包含一个很宽的频率组成范围，可扩展到兆赫。) (hao86.com好查)
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