介质流量和压力改变较大、并且又是多程组合、长期运用的板式换热器，容易发作板片错位表象。
Medium flow rate and pressure change is bigger, and it is a multi-pass combination, long-term use of plate heat exchanger, plate of dislocation surface easy to attack.
介质流量和压力改变较大、并且又是多程组合、长期运用的板式换热器，容易发作板片错位表象。
Medium flow rate and pressure change is bigger, and it is a multi-pass combination, long-term use of plate heat exchanger, plate of dislocation surface easy to attack.
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