Wuliyastai depression reservoir is a new developed oilfield, and its bed plane distribution is unequal, it's can't be analyze perfectly by tradition fracturing software.

Cool-headed meteorologists were quick to put the story to bed: it was just an optical illusion, the cause of sunlight hitting a cloud disturbed by wind or plane traffic in just the right way.

The Pentagon has repeatedly said that the space plane is simply a “test bed” for other technologies.