双语例句
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Pneumatic valve works by rotating the valve spool to flow or occlusion.
气动球阀的工作原理是靠旋转阀芯来使阀门畅通或闭塞。
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The pneumatic valve V-compact, compact and lightweight, easy to install, easy to maintain.
气动V型球阀结构紧凑，小巧轻盈，安装方便，维护简便。
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Optional high flower is aspersed, sprinkler control pneumatic valve, 20 metres green reel, etc.
选装高位花洒、洒水控制气动总阀、20米绿化卷盘等。
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