本文主要介绍压力比例混合器的原理、理论计算，着重论证了压力比例混合器混合比的无级自动调节。
Briefing the principle and theoretical calculation in respect to the pressure proportioner, priority is given to the explanation of its stepless automatic adjustment.
BZR是一种适合所有燃烧系统的燃气流量控制调节器，和比例混合器，内混烧嘴，正负炉压等一起使用。
The BZR is a precise gas flow control regulator for all combustion systems. Used with Proportional Mixers, Nozzle Mix Burners, positive or negative furnace pressures etc.
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