这种甲虫主要吃谷物的胚芽.This beetle eats mainly the germ of the grain.我们用气相层析法来测定各种谷物的水分.We use gas chromatography for moisture determination in a number of grains.全国各地牧场对套种谷物的选择都不相同.Farmers'preferences for a companion cereal ...
There are times when personal feelings cannot be allowed to intrude.有些时候是不允许夹杂个人感情的。Do you feel anxious when unforeseen incidents intrude on your day?当意外事件干扰了你的生活时，你会感到焦虑吗？Do you feel anxious when unforeseen incidents in...