biological cycle

基本解释

In this paper, advances in the studies on biological cycle of Se and Se sources of foodstuff are reviewed.
机体硒的来源主要是食物，综述了硒的环境生物学及含硒食品的研究进展。
Otherwise, the characteristics of products of SSF are better, and there is much less pollution, which do good for biological cycle.
而且工业生产时排污少，环境污染小更有利于生物循环等。
He spells it out: all the drive, wit, love, pride, anger, hope and anxiety that characterise the species Homo sapiens are simply there to perpetuate the biological cycle.
威尔逊可谓是语出惊人，他说：所有用以刻画人类这个物种的种种特性，如内驱力、智力、爱情、骄傲、愤怒、希望和焦虑等，仅仅是为了让生物周期永久延续下去。

Transforming biology into an engineering practice, decoupling design from fabrication and speeding the biological design, build, test cycle is how DARPA proposes to tackle this problem.
FORBES: DARPA Builds First Bio-Engineering Factory