The first day of school in the China falls on 1 September, or the first Monday following if September 1 is a Friday, Saturday, or Sunday. In northeastern China, schools open on Monday in mid-August after summer vacation.
3) Improper heating profiles setting lead to unbalanced heating zones temperature inside heating furnace, which causes uneven glass temperature on both different parts of the glass sheet and between the top and bottom glass surfaces, thus may brings irregular white haze on glass surfaces.
There are several causes of cloudy eyes (opacity, catarracts). It can be caused by any number of systemic illnesses, such as the various organisms that also cause diarrhea, diabetes, etc. Also, deficiencies such as Vitamin A can lead to cloudiness. The most common cause, however, is trauma of some sort.