trophic level
常见例句
- The next best way to quantify the amount of protoplasm in each trophic level is to weigh it .
确定每一个营养阶层原生质总量的第二个好办法是称重。
www.translation-dictionary.net - The average trophic level of what is being caught is rising -- and this in principle should indicate improving ecosystem health.
食物链等级体系中的高等级物种平均捕获率(而捕获正在并将持续进行)处于持续上升态势之中——按照所谓食物链等级理论,这应当意味着海洋生态系统的健康平衡发生了变化。 - The ecosystem appears to be a young weak one caused by overfishing, with small and low-valued fishes dominated and low ecotrophic efficiency for trophic level I.
系统受过度捕捞渔业影响很大,并存在营养级I利用效率低和渔业资源小型化、低值化等不稳定的幼态特征。 返回 trophic level