Heart arrhythmias (uh-RITH-me-uhs) are often harmless.
心律失常经常是无害的。
What are the sources of variability in the UHS system?
UHS系统可变性的来源是什麽？
Though old habits take some time to break, it is possible to 6 banish the "ums" and "uhs" forever.
虽然改掉旧习惯要花费时间，但永远告别“嗯”、“啊”是有可能的。
No, a few 'ers' and' uhs 'is actually understandable and conversational. But make sure not to make it a habit.
没什么大不了的，几个‘呃’跟‘啊’是可以被理解的，且更显对话感觉。但就是别养成习惯了。
You'll be able to hear your "ums" and "uhs" and "okays" and you can practice reducing them from your conversational speech.
你会听到自己的“嗯”、“呃”、和“好”等各种语气词，你可以通过练习减少在谈话中使用这些词。
Objectives:To establish a method of electric power detection and to evaluate its performance for ultrasonic harmonic scalpel(UHS).
目的：建立一套实用的超声外科手术系统电功率检测方法，以评价在用超声外科手术系统的电功率性能。
Using 2002 urban household surveys (UHS) data, this paper examines the relationship between returns to schooling and family background in urban china.
本文采用2002年城调队数据，研究了城镇居民中家庭背景与子女 教育回报率之间的关系。
This article introduces the application of UHS in the laparoscopic surgery, emphasizes the application, the advantage and how to keep it in good repair during the operation.
介绍超声刀在腹腔镜手术中的应用，着重介绍了超声刀的使用方法、优点及其保养。
We think we should remove any ums and uhs when we talk, especially when teaching children language. New research finds that such pauses may be useful. Christie Nicholson reports.
我们总认为说话的时候应该要去除任何嗯啊的发语词，特别是教导孩童语言的时候。新的研究发现这类发语词的停顿可能对语言学习是有其功用的。
We think we should remove any ums and uhs when we talk, especially when teaching children language. New research finds that such pauses may be useful. Christie Nicholson reports.
我们总认为说话的时候应该要去除任何嗯啊的发语词，特别是教导孩童语言的时候。新的研究发现这类发语词的停顿可能对语言学习是有其功用的。
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