Aim To prepare Clarithromycin floating beads and investigate its buoyancy, entrapment efficiency and drug release behavior in vitro.

目的制备克拉霉素胃漂浮小丸，考察其漂浮性，包封率和体外释药行为。

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This paper introduces the aim, requirement and content of improving the floating dock of "OCEAN SHIPPING".

介绍“远洋”号浮坞改造的目的、要求和内容。

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The aim of the experiment is to reduce the large amount of ineffective evaporation in inland arid area plain reservoirs by using polystyrene foam plastic slabs floating on the water surface.

本文针对内陆干旱区平原水库水面无效蒸发量大的问题，提出用苯板漂浮水面的工程措施来防止蒸发损失，从而达到平原水库节水的目的。

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