改用该燃烧器后，进一步保证了锅炉安全、经济和长周期运行。
After using that burner, the boiler safety, economic and long period operation were secured further.
同时提出从设计、操作、设备等方面采取有效措施，保障预热器的长周期高效运行。
Effective measures were presented in respect of design, operation and equipment to ensure long-term operation.
同时提出从设计、操作、设备等方面采取有效措施，保障预热器的长周期高效运行。
Effective measures were presented in respect of design, operation and equipment to ensure long-term operation.
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