Over the course of 200 hours of use on two test units, lumen output degraded by 25% on both of them.
有两台测试样机在使用了200小时后，都降低了25%的流明输出。
On one of our XJ-A130s, the max lumen output was 1228 when it was new. After 130 hours of use its maximum brightness dropped to 949 lumens, which is a 23% reduction.
我们手头的其中一台XJ-A130， 开箱时最大流明输出1228流明，但使用过130小时之后其最大流明输出降为949流明，降幅达23%。
When designing pavement structure, we want to use bituminous concrete to improve driving comfort and to consider volume of traffic and hours of use to confirm thickness of pavement.
路面结构设计时为增加行车舒适性采用沥青混凝土路面，考虑交通量和设计年限，确定合理的路面厚度。
When designing pavement structure, we want to use bituminous concrete to improve driving comfort and to consider volume of traffic and hours of use to confirm thickness of pavement.
路面结构设计时为增加行车舒适性采用沥青混凝土路面，考虑交通量和设计年限，确定合理的路面厚度。
应用推荐