Molecular formula :
nature : When the smaller diameter fluidized bed, the bed than large-diameter, bubble up in the process of coalescence and may increase to occupy the entire bed section, separated into bed after a solid paragraphs, a solid particles to spiral upwards as a plunger like moving until a certain location collapse, and particles under the rain, a phenomenon known as the Tang Chung (also known as the Festival Bay). But Bed large diameter, Teng Chung phenomenon does not usually happen.
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