利用系数: availability ratiocoefficient of occupationcoefficient of usecoefficient of utilizationfactor of utilizationoccupation factoroutput coefficientproductivity ratioratio of utilizationservice
We should rework the meterials that were previously unprofitable . 我们应对过去没有利用的原材料重新研究。
2.
Not made use of or put to advantage 未经开发利用的没有利用的或没有使得有利的
3.
Fennel and celery along with lettuce draw upon some of the sugar released in the wastes of the potato kingdom that are not drawn upon by the beets and this allows the celery and fennel to also be sweet to the taste 茴香、芹菜和卷心菜会利用一些马铃薯王国所排出而甜菜王国并没有利用的糖分，这会让芹菜和茴香尝起来也较甜。
