等百分比调节阀口径一般较小，当需要大口径调节阀时，实际工程中会采用调节型蝶阀来替代。
When a big adjusting valve is required in a project, the adjusting butterfly valve can be fully in place of the equal percentage adjusting valve.
等百分比调节阀口径一般较小，当需要大口径调节阀时，实际工程中会采用调节型蝶阀来替代。
When a big adjusting valve is required in a project, the adjusting butterfly valve can be fully in place of the equal percentage adjusting valve.
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