So the ANSI lumen spec, when measured under these conditions, does not accurately reflect the actual brightness the user will get in normal operation.
所以在这些条件下测得的ANSI流明参数并不能精确的反应用户在正常使用环境下获得的实际亮度。
The preparation method utilizes industrial sulfuric acid to leach waste iron residue in oxygen and at normal pressure under reasonable production process and operation conditions.
介绍了以废铁渣为主要原料与工业硫酸反应制备三氧化二铁，产生的废液加氧化钙生成副产物硫酸钙的工艺。
The preparation method utilizes industrial sulfuric acid to leach waste iron residue in oxygen and at normal pressure under reasonable production process and operation conditions.
介绍了以废铁渣为主要原料与工业硫酸反应制备三氧化二铁，产生的废液加氧化钙生成副产物硫酸钙的工艺。
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