The water sports centre will provide you with snorkelling gear and a floatation vest if you would like one.
在水上运动中心将为你提供的浮浅齿轮和浮选背心，如果你想的话。
The paper introduces the process system research on economic water coal slurry which is made of floatation coal for mix burning with coal and has good burning performance.
介绍了经济型水煤浆工艺系统研究，利用浮选煤泥制备经济型水煤浆在锅炉上掺烧，具有良好的燃烧特性。
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