本文介绍了羟乙基纤维素的一般性质, 应用和生产方法.The general properties, application and manufacturing methods of HEC were introduced.研究了高取代度羟乙基纤维素 ( H-HEC ) 的精制工艺.The refining process of high - substitution hydroxyethyl cellulose ( H - HEC ) ...
再来一只麦克风,你就万事俱备了。All you need is a microphone, and you're in business.我的手抖得如此厉害,几乎都拿不住麦克风了。My hand shook so much that I could hardly hold the microphone.他们开始把麦克风传给前面的女孩们。They started handing the microphone out round ...