Report - GE Oil & Gas 77000 系列 - Baker Hughes...绝热 安装绝热时，不得隔绝阀盖，并采取人身安全方面的保 护措施。液压静力测试和管道清洁 执行该操作期间，控制阀不得用作隔离阀。也就是说，执

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