At least one shroud is secured to the baffle plate and includes at least one piston ring disposed at the shroud.

至少一个防护罩固定到挡板上，并包括设置在防护罩处的至少一个活塞环。

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At least one shroud is secured to the baffle plate and includes at least one piston ring disposed at the shroud.

至少一个防护罩固定到挡板上，并包括设置在防护罩处的至少一个活塞环。

youdao