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1. Theflexible tube valve is used to control theflow of oil in the pipeline.
柔性管阀用于控制管道中油的流动。
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2. Theflexible tube valve allows for easy installation andmaintenance.
柔性管阀便于安装和维护。
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3. The flexibletube valve is a crucial component in theoil industry.
柔性管阀是石油工业中至关重要的部件。