membrane filtration speed 膜滤速率
low-speed sand filtration 低速砂滤
filtration air speed 过滤风速
constant speed filtration 恒速过滤
multistage high-speed filtration 多级高速精细过滤
Because screen hole by plugging, filtration speed gradually decreasing.
由于筛孔逐渐受堵，过滤速度呈降低趋势。
This kind of damage is caused by smoke and dust, which is caused by the uneven distribution of airflow and the high filtration speed.
此类破损是烟尘冲刷致使，疑问出在气流散布不均、过滤风速过高等因素构成的。
Barm cell concentration before beer filtration had direct effects on beer filtration speed, filtration efficiency and filtration costs.
啤酒过滤前酵母细胞浓度的高低直接影响到啤酒过滤速度、过滤效率及成本。
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