释义 |
fraxinus mandshurica短语¹³¹⁶²⁰⁺³ 基本例句 水曲柳 The Fraxinus mandshurica was an important precious hard hardwood species of China Northeast forest. 水曲柳是我国东北林区重要珍贵硬阔叶树种。 fabiao Artificial regeneration of Fraxinus mandshurica in forest range of Changbai Maintain was studied based on the survey and analysis of fixed plots in field contrast trial. 在长白山林区通过野外调查、固定样地对比试验与分析,对水曲柳人工更新方式进行了研究。 cnki Especially Fraxinus mandshurica is an important rare timber tree species in Northeast China. 尤其水曲柳是我国东北林区重要的珍贵硬阔用材树种之一。 cnki There are significant effects for thinning intensity on growth ring width, late wood percentage, growth ring density and hardness of Fraxinus mandshurica. 对生长轮宽度、晚材率、生长轮密度、木材硬度有显著影响; cnki Fraxinus mandshurica is one important tree specie for plantation in the northeastern forest region of China. 水曲柳是我国东北林区重要的造林树种。 cnki |