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主要对焊接(不可拆)板式换热器这种新型特殊压力容器的特点和质量控制及对其制造单位资格审查时应重点把握的操作方法作一系统的阐述。
Mainly on the welding (non-removable) plate heat exchanger of this new special pressure vessel characteristics and quality control and manufacturing unit qualification examination should focus on the operation method for a systematic exposition.