The extent of water mobility within biological tissues can be quantified by a parameter called the apparent diffusion coefficient (ADC).
水在生物组织内的流动程度，可以由一个被称为表观扩散复合系数（ADC）的参数去量化之。
Studies were made on the vegetative propagation coefficient and cormels biological characters using eighth-excision in different development phase of Lycoris radiate.
在红花石蒜不同生长发育期进行八分法切割繁殖，研究无性繁殖系数和子球生物学性状差异性。
Enhancing photosynthetic function, improving biological yield and economic coefficient is an important physiological basis for increasing the yield of potatoes covered with film.
增强光合性能，提高生物产量和经济系数，是旱作覆膜马铃薯增产的重要生理基础。
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