使用三通阀时，可省掉一个两通阀和一个三通接管。
Use three-way valve, a two-valve and can be saved over a three links.
由于其特殊的功能要求和性能要求使其在组成和结构等方面有别于常规的两位两通阀。
It is different from the ordinary two-way valve in structure because of its particular demands of function and performance.
分析表明当某高层建筑空调系统水流量降低为总设计流量的50%时，其底层风机盘管上的电动两通阀动作失灵。
The analysis indicates when the flow-ratio of system in high-rise building falls to 50% of the total design flow, the two-way electronic valve on the fan-coil in first floor causes valve failure.
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