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光效利用率(η)是照明节能最关键、贡献最大的指标,其本质是“精准控光”能力。
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6月30日晚间,联得装备(300545)和天保能源(01671)分别发布公告,披露了各自在业务上的重要进展,两家企业在不同领域均取得积极突破。
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