oil concentration的用法和样例：
例句
- Despite the reduced oil content with increasing nitrogen rates, the highest oil production per hectare came from the highest nitrogen treatment.
尽管随着氮肥施用量的增加含油率下降，但每公顷最高油产量仍得自于最高的施氮肥处理。 - Niuerdu and Zake cv.had higher GCA effect,their F1 hybrids also had maximum SCA.The two varieties are desirable parents for high oil content breeding.
牛耳朵和渣壳油菜的一般配合力效应较高，其杂交组合的特殊配合力效应值也最大，它们是两个含油率较理想的亲本材料。
