The plant local altitude is230-280meters and has a high atmospheric dustiness and a climate with freezing in winter .

处理厂所处高度为230-280米，大气含尘量高，冬季会结冰。

To get a better sense of the net effects brought about by the ups and downs of dust , it would help to have a detailed historical record of the dustiness of the planet .

为了更好地了解沙尘起落带来的净效应，对于地球沙尘发展史有一个细致的了解可以会给与一定的帮助。