Research on Photosynthetic Daily Course of Ulmus crassifolia and Its Influencing Factors;
南方岩榆光合作用日变化及其影响因子研究
There are many differences between the southern rock paintings and the northern rock paintings on the cont-ents, the skill, the places, the size, the composition and the results.
北方岩画的审美特质是阳刚美或壮美,南方岩画的审美特质可以说是阴柔美或优美。