From the calculating program a time - saving method is provided to predict daylight level within buildings under the average sky condition.
该计算程度可以快速准确地算出平均天空条件下的室内日光值。
Due to the moon's titled and elliptical orbit around Earth, the moon seems to return to the same place in the sky 51 minutes later each day, on average.
因为有卫星的头衔,而且沿椭圆形轨道环绕地球运行,月亮似乎每天平均51分钟返回到天空的同一地点。
After drifting lower at a sleepy pace for most of the day, the Dow Jones industrial average abruptly lurched into a hair-raising sky dive in the final hour of trading.
漂流后在一个沉睡的速度降低最多的一天,道琼斯工业平均指数节节突然变成令人毛骨悚然的天空潜水在交易最后一小时。
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