Certain corrective actions of this guide may not be feasible with the Compact Ball Valve (sealed unit).

对于紧凑型球阀(密封装置)，本指南的某些纠正措施可能并不可行。

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Certain corrective actions of this guide may not be feasible with the Compact Ball Valve (sealed unit).

对于紧凑型球阀(密封装置)，本指南的某些纠正措施可能并不可行。

youdao