scientific field短语⁹⁶⁶⁷⁷⁺⁶ 基本例句 科学领域 Rational distribution and sustainable utilization of limited land resource are becoming an attracting problem for international society and population and a research issue for scientific field. 如何合理配置有限的土地资源，实现土地资源的可持续利用，不仅受到国际社会和广大民众的广泛关注，也成为了学术界研究的热点。 cnki