The main factors affecting the well yield are the transmissivity and water yield 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。
Drilling fluids is one of the main factors influencing the yield of water well.
钻井冲洗液是影响水井出水量的主要因素之一。
The term "sustained yield" is probably most useful has applied to the yield of well fields in situations that Thomas has termed "water-course aquifers".
“持续开采量”这个术语用于托马斯称作“连河含水层”情况下的井田开采量，大概才是最合适的。
The strategy of drought resistance studies is developing drought resistance variety and introducing appropriate cultivation technology to increase rice yield as well as save water resources.
在进行抗旱品种改良的基础上，通过引进相应的栽培技术，节水种植，实现水稻旱作，并达到稳产与增产的目的，是抗旱性研究的战略目标。
It explored the effect of straw returned to field and deep fertilization in autumn on the growth and yield of dryland corn as well as water use efficiency and soil fertility.
结果证明，秸秆还田秋施肥较好的解决了深施肥与春季保墒促全苗以及秸秆腐解与幼苗争水争肥影响幼苗生长的矛盾，秸秆资源丰富的优势得到充分利用，土壤水肥状况得到明显改善。
Thefactors such as the catalyst, acid alcohol mole proportionality, water carrier and reactiontimes are studied as well as the yield which the process of reaction influences.
考察了催化剂、酸醇比、带水剂和反应时间等因素对产率的影响。
Thefactors such as the catalyst, acid alcohol mole proportionality, water carrier and reactiontimes are studied as well as the yield which the process of reaction influences.
考察了催化剂、酸醇比、带水剂和反应时间等因素对产率的影响。
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