由于这种技术的效果很成功，张教授和马教授正对中国几个直辖市作技术推广，帮助他们建立类似的处理中心。
Given the success of the technique, Dr Zhang and Dr Ma have now been invited by several municipalities in China to help with the establishment of similar treatment centres.
由于这种技术的效果很成功，张教授和马教授正对中国几个直辖市作技术推广，帮助他们建立类似的处理中心。
Given the success of the technique, Dr Zhang and Dr Ma have now been invited by several municipalities in China to help with the establishment of similar treatment centres.
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