This paper discuss how to measure and calculate when a parallel light doesn't incide grating vertically in measuring grating constant and how to adjust a parallel light to incide grating vertically. 本文讨论光栅常数测量中,平行光不垂直入射光栅时如何对测量值的影响及如何调节平行光垂直入射光栅。
It is pointed out that higher geothermal gradient is in accord with main source bed in the stratigraphic section and higher geothermal area is approximately co-incide with oil and gas bearing area. 指出:在地层剖面上,高地热梯度段和主要生油层相一致;在平面上,高地温异常区和油田区相一致。