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。
The at least one piston ring is configured to meter a flow of diluent between the at least one shroud and the at least one fuel nozzle.
该至少一个活塞环构造成在至少一个防护罩和至少一个燃料喷嘴之间计量稀释剂流。
Recounted friction loss circumstance on parts of the second-row shroud-ring in the Curtis stage for N12 turbine's rotor.
根据启动试验结果和大修检查发现的问题，介绍了转子复速级第二列复环局部严重磨损的情形。
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