以下为句子列表：
英文: A comprehensive description of the application of and research on ultrasound in waster treatment in recent years is given. Further, the existing technical problems and the developmental trend are discussed.
中文: 摘要综合介绍了近年来超声波技术在废水处理中的应用及研究进展，并对目前的研究成果和今后的发展做了探讨。
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英文: Abstract: Synthesis of 3,3’-dinitrochalcone under ultrasound irradiation using K2CO3 catalyst was reported in this article. This method have advantage of convenient operation, short reaction time and high yield.
中文: 作者简介:王维(1976－)，男，回族，安徽全椒人，硕士研究生，主要从事高分子功能材料方面的合成与应用研究。
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英文: An endoscopic ultrasound showed that the tumor originated in the submucosal layer of the digestive wall.
中文: 内视镜超音波检查发现此肿瘤源自于胃肠道壁的黏膜下层。
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英文: An ultrasound in this case revealed no fetus, only a snowstormeffect.
中文: 超声检查显示没有胎儿，仅是一个“暴风雪”效应。
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英文: A comparative study and evaluations on the results of TURP and transrectal high intensity focused ultrasound (HIFU) for the treatment of benign prostatic hyperplasia;
中文: 经直肠高能聚焦超声与经尿道前列腺切除术治疗前列腺增生症近期疗效比较
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