The main factors affecting the wellyield are the transmissivity and wateryield coefficient of the aquifer as well as the permeability coefficient and thickness of the leaky layer.
含水层的导水系数、释水系数和弱透水层的渗透系数、厚度是影响井涌水量的两大重要因素。
2
Drilling fluids is one of the main factors influencing the yieldofwaterwell.
钻井冲洗液是影响水井出水量的主要因素之一。
3
The term "sustained yield" is probably most useful has applied to the yieldofwell fields in situations that Thomas has termed "water-course aquifers".