The number of non-farmers is significantly and positively related to net income per capita for a rural household.
农村非农劳动力数量与农户家庭人均纯收入之间具有显著的正相关关系；
2
But the computer model suggests that dairy farmers carrying this gene variant probably originated in central Europe and then spread more widely and rapidly than non-dairying groups.
但计算机建模表明，携带该基因变种的奶农来自中欧，之后比非乳品业人群分布得广泛而迅速。
3
We will steadily cover more working and non-working urban residents under the medical insurance system and more farmers under the new rural cooperative medical care system.