释义 |
vegetation variations 基本例句 植被变化 Groundwater is an important affecting factor for vegetation variation.地下水是影响植被变化的主要因素。 The study on the morphology of stomata of conifers is the foundation of identifying fossil stomata that is important for the study of the change of vegetation and climate.摘要现代针叶树气孔器的研究为鉴定化石气孔器奠定了基础,对第四纪植被变化和古气候的研究起着很重要的作用,是第四纪孢粉学的一个重要补充。 |