利用光电效应测定河流泥沙在理论上是没有什么问题的,在自然条件下应用时,可能受到各种自然地理因素的影响。不过这些影响在一特定的河段上,在一定时间内,在一定的流速下,它是以常数出现的,是可以进行订正的。利用光电效应测定河流泥沙的第一步工作就是测定出不同颗粒,不同成份,不同形状……的泥沙与电 The use of photoelectric effect of river sediment in theory is no problem, when applied in natural conditions, may be subject to a variety of natural and geographical factors. However, these effects are constant over a certain period of time and at a constant flow rate for a certain period of time and can be revised. The first step of using the photoelectric effect to determine river sediment is to determine the sediment and electricity of different particles, different compositions and different shapes ...