licorCOCA³¹⁵¹¹¹⁺⁴BNC¹⁷³⁹⁹⁵⁺² 基本例句 🌏利口酒 By the means of LICOR-6400 photosynthetic system, the photosynthetic characteristics of birch Betula platyphylla in climax community in Great Xingan Mountain were studied. 应用LI-6400光合作用测定系统,研究了大兴安岭不同演替阶段白桦光合生理生态学特征。 cnki