On the basis of the predecessor ′ s research, and considering the problems of agriculture development of red hilly region, the study more analyze and study the ecology function of forage; bring forward the utilization mode of forage by characteristics of grassland resource; 本论文在结合前人研究的基础上,针对红壤丘陵区农业发展中所面临的问题,对牧草具有的生态效益做进一步分析研究,并根据该区草地资源的特点,提出了牧草的利用模式;
About Chinese temporal words, the predecessor and eminent scholars have done more on its scope, classification, syntax function, semantics, but less research on one of their meaning-class. 关于汉语时间词,前人时贤已从范围、归类、句法功能、语义等角度做过不少研究,但是针对某个义类范畴的具体的研究并不多。