several manufacturers of medical ultrasound imaging systems have introduced tissue harmonic imaging.的翻译：several manufacturers of medical ultrasound imaging systems have introduced tissue harmonic imaging. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

医学超声成像系统的几个厂家纷纷推出组织谐波成像。

several manufacturers of medical ultrasound imaging systems have introduced tissue harmonic imaging.

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several manufacturers of medical ultrasound imaging systems have introduced tissue harmonic imaging.