throttle vale
节流淡水河谷
以上为机器翻译结果，长、整句建议使用 人工翻译 。
However, there were many defects in the previously used desuperheating systems, which consisted of Allocate vale in water supply, throttle devices and nozzle.
旧型减温减压装置采用的是给水分配阀、节流装置、喷嘴等组合结构形式的减温系统，存在着许多的弊端和不足之处。
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