He found in a series of trials that populations of the familiar weed evolve changing physically to take advantage of this sort of resourceenhancement within the space of one growing season.
With the development of science, supply chain management has become the third profit spring behind reasonable resource utilization and labor efficiency enhancement.
随着科学技术的进步,供应链管理已经成为继资源合理利用和劳动效率提高之后的第三利润源泉。
3
With the increasingly enhancement of global warming and human activities, the spatial-temporal distribution of water resource has obviously changed.