Stand the material rate of timber species and the investigation of the relationship between factor complex relationship.
林分材种出材率与各调查因子的关系存在复杂关系。To increase the yield rate of quarter sawn lumber, a double-circular sawing technique was developed and fully described in this paper.
为提高径切板的出材率，研究出双联圆锯制材技术。The correlation between the output of different dimension stock and stand density was significant.
不同规格材的出材量高低与林分密度相关密切。Using taper function to determine cubic-volume outturn is an important method and has the good serviceability.
利用削度方程确定材种出材率是个重要的方法，具有较好的适用性。Control production cost, improve yield and output, quality.
控制生产成本，提高出材率及产量，质量。Research on log rule of timbers from artificial masson pine forest .
马尾松人工林材种出材率表的研究。In order to verify the support vector machine for predicting the experience of timber stands of timber species was feasible.
从而验证支持向量机用于预测林分经验材种出材率是可行的。Poplus-fungus intercrop was helpful to each other's growth, it could promote the fungus' yield and the tree's timber amount.
林菌间作林木与食用菌可互相促进生长，提高食用菌产量和林木出材量。Compiling outturn table of timber assortments for natural second forest and its application
天然次生林木材种出材量的编制与应用