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Under man made wave, study on the change of the characteristic of Bohai crude oil and the dispersion efficency with the weathering time was performed.
以渤海埕北油田B平台外输原油为对象，在人工模拟波浪下，研究原油特性随风化时间的变化在伴随着的化学分散效果的变化。
It is of great significance to study operating performance and exhaust flow characteristic under off-design conditions of condenser system for the economic operation of direct air-cooled units.
研究直接空冷系统变工况运行以及排汽活动特性，对于进步直接空冷机组运行水平具有重要意义。
In this paper, PIV (Particle Image Velocimetry) is applied to study the characteristic of in-cylinder flow field under different valve lifts.
本文采用粒子图像测速技术研究了汽油机在不同气门升程下的气体流动规律。
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