...流速限定： 流速限定： 压力切换 压力切换（（Pressure cycling): Pressure cycling): 流速切换 流速切换 (Flow cycling): (Flow cycling): 容量切换 容量切换 (Volume cycling): (Volume cycling): 时间切换 时间切换 (Time cycling): (Time ...
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常见的方式有压力切换、容量切换、时间切换和流速切换，即吸气达到预置的压力、容量、时间或流速则转为呼气。
Common form of the pressure switch, volume switch, time switch and flow switch, that is, to achieve the preset inspiratory pressure, capacity, time or flow rate is converted to breath.
结果表明：适当降低流过蓄热体的气体流速，缩短四通换向阀的切换时间，可降低烟气的出口温度，提高系统的余热回收率。
Result shows that decreasing fluid rate and shortening switching time can decrease the temperature of the exhaust gas and increase the recovery rate of waste heat.
试验研究了当量比、切换半周期、空截面流速三个影响参数对温度分布的影响规律，以及燃烧器污染物排放的特点。
The effects of various equivalent ratios, circulating cycle time and gas flow velocity on the temperature distribution and pollutant emission are analyzed.
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