生物防治是一种生态学上的很好解决为害物的方法.Biological control is an ecologically sound approach to pest suppression.同样,许多农学院和农业大学中也忽视基础生态学.Basic ecology has similarly been ignored in many agricultural schools and universities.对植物生态学的研究通常比动物...
In one fell swoop the bank wiped away the tentative benefits of this policy.银行一下子就抹杀了这项政策暂时带来的好处。Against it, parakeets and toucans and blue - winged macaws swoop.晨光下, 小鹦鹉、巨嘴鸟和翅膀鲜蓝的金刚鹦鹉展翼翱翔.The hawk poised in mid-air read...
The lees of wine gradually subside.酒渣慢慢地沉淀下来.There are lees to every wine.〔谚语〕有酒就有酒渣.The other method was that maize oil was prepared from lees.二是从蒸馏后的酒糟(DDGS)中用溶剂浸出提取玉米毛油,毛油经进一步精炼得精制玉米油或一级玉米油....