当年形成的1龄级根茎大多是从2龄级根茎上产生。
Most 1st age class rhizomes of present year developed from the 2nd age classes.
整体上，年轻龄级分蘖株和根茎具有旺盛的物质生产力和贮藏力。
On the whole, young tillers and rhizomes had vigorous matter productivity and storage capacity.
用线性规划的方法建立遂昌湖山林场用材林龄级调整最优化数学模型。
Using the linear programming method, they have set up a mathematic optimization model for adjusting age-grade of timber forest in Hushan Forestry Farm of Suichang, Zhejiang.
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