rotary valve spherical valve的意思|示意
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转阀球面阀
rotary valve spherical valve的网络常见释义
球阀 水力机械,(简称水机,包括水轮机、蓄能泵和水泵水轮 ... 圆筒阀 cylindrical valve,ring gate 球阀 rotary valve,spherical valve 盘形阀 mushroom valve,hollow-cone valve,howell-Bunger valve ...