In the two actual tunnel, we measured and calculated visibilityof the small target under the three light source, and made a visual experimental method of the small target color.
Yesterday, complete province remains fine fine day to enrage, major area has the morning light mist, the south of Suzhou still appeared visibility is less than 1000 meters big mist.
昨天，全省仍然是晴好天气，早晨大部分地区都有轻雾，苏州的南部还出现了能见度小于1000米的大雾。
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Exceed light LED shiner replace half of electric bulb, can be used forever and Visibility reach one mile.