solar day

A sidereal day is about 4 minutes shorter than a solar day .

一个恒星日比一个太阳日大约短4分钟。

They tracked natural cycles : the solar day , the lunar month and the solar year .

他们遵循自然的循环：太阳日、太阴月，还有太阳年。

A sidereal day is shorter than a mean solar day by 3 minutes and 56 seconds .

恒星日比平均太阳日短三分五十六秒。

Some experiment data , which are captured in a solar day and a misty day , are utilized to verify the validity of our method .

比较了晴天与雾天条件下模型变化趋势的不同，大量实验亦表明此方法的有效性。

ResultsA set of automatic track control system , which can keep that sunlight illuminate vertically solar cell by day , is designed and constructed .

结果设计出了一套自动使太阳能电池板保持与太阳光垂直的控制系统，构建了自动跟踪系统模型。

In winter , it can absorb solar energy during the day and at night it slowly release the heat .

冬天时，白天它可以吸收太阳能，夜晚缓慢释放；

Scientists initially found it hard to take measurements of Haumea because of its extremely rapid rotation , faster than any other known body in the solar system - a day is only 3.9 hours long .

它的公转速度比太阳系中其他已知星体都要快，妊神星上的一天按照我们的计时标准只有3.9个小时，所以在开始的一段时间内，科学家们很难对它进行测量。

LEDs ' greater energy efficiency makes it possible to run them from batteries charged by solar panels during the day ( see article ) . We 'll be waiting for calling the whole day in working days .

凭借更高的能效，LED可以通过太阳能电池供能全天候工作。我们将在工作日全天等候您的致电！

The primary study on the photosynthetic characteristics of 6 varieties of ornamental pumpkin was studied in solar greenhouse , the day change of PAR and the rate of transpiration was similar , they were double-peak curve .

通过对日光温室内栽培的6个观赏南瓜品种光合特性的初步研究，结果表明：日光温室观赏南瓜不同品种的光合有效辐射、蒸腾速率的日变化规律相似，均呈明显的双峰曲线变化；

Not all of that steam could be solar , but a system which used high-pressure solar steam during the day and low-pressure gas-generated steam by night , to keep the pipes hot , might get 80 % of its power from the sun .

尽管不是所有的蒸气都是太阳能生产的，但是白天使用高压太阳能生产蒸汽，晚上使用低压燃气生产蒸气来维持管道高温的系统可能其80%的能源都来自于太阳。