Formulas have been derived for determining the folding location, the folding Angle and the drivingsurface Angle.
导出了设计折面轮叶折转点及折转角的计算公式，以及合理确定驱动面倾角的理论计算公式。
2
"We have not had a clear understanding of what is driving this melting because the atmospheric forcing - the temperature at the surface - is not warm enough to cause such a melting," he added.