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毕业设计说明书(英文翻译)
2
英文
250W high pressure sodium lamp electronic ballast inductance ballasts and
comparative analysis of performance and energy-saving
High-pressure sodium lamp is a high intensity gas discharge lamp, and its
development began in 1955. Now, high-pressure sodium lamp life of up to 10,000
hours, light efficiency is higher than 100 lm / W. High-pressure sodium lamp