大神呆哥高端素颜小年,小保姆在厨房做饭,ysl水蜜桃王馨瑶

What is the luminous flux of the lamp?

Release Time:2019-09-30 
Abst:The sum of the energy emitted by the light source and received by the human eye is the luminous flux (Φ).Unit: lumens [lm]

The sum of the energy emitted by the light source and received by the human eye is the luminous flux (Φ).

Unit: lumens [lm]

Copyrights ? 2018 All Rights Reserved by Goomay Inc.

技术支持:谷美科技

主站蜘蛛池模板: 青岛市| 江门市| 康平县| 那坡县| 瑞昌市| 扎赉特旗| 浦城县| 盐边县| 探索| 乌拉特后旗| 天祝| 昭觉县| 石泉县| 溆浦县| 绵阳市| 平湖市| 呼伦贝尔市| 九寨沟县| 抚宁县| 县级市| 石阡县| 万州区| 稻城县| 崇文区| 易门县| 五台县| 吐鲁番市| 佳木斯市| 于田县| 灵璧县| 克拉玛依市| 南京市| 金华市| 华阴市| 定西市| 同德县| 金川县| 房山区| 嵊泗县| 内黄县| 龙口市|