plain valve head 平阀头
exhaust valve head 排气阀头部
valve head diameter 气门头外径
intercepting valve head connection 中间阀盖接头
side-valve head 侧置气门气缸盖
main valve head cap screw 主阀盖有头螺钉
Valve head line-type 阀头线型
valve head deposits 气门头积炭
USES HPB591 gb brass valve head, quality guaranteed.
采用HPB591国标黄铜阀头,品质有保障。
Stainless steel valve head and seats provide long service life.
不锈钢阀头和阀座延长使用寿命。
The influence of flowing area, structural of valve head, inlet density and outlet specific volume to mass flow coefficient were studied.
得到了膨胀阀的流通面积、阀头结构、膨胀阀入口密度、阀后比容对流量特性的影响,并拟合了流量系数关联式。
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