1.
A Study on the Stand Merchant Radio Prediction Model Based on BP Algorithm
基于BP算法的林分材种出材率模型研究
2.
Compiling of One-variable Volume Table and Outturn Table of Stand of Chinese fir in Hongqi Forest Farm
红旗林场杉木地径一元材积及出材率表的编制
3.
Study on the Timber Assortment Timber-Produced Rate Table of Cunninghamia lanceolata Plantation in Yangkou Forest Farm
洋口林场杉木人工林材种出材率表的研究
4.
Effects of Sawing Methods on Dimensional Lumber Recovery and Quality
下锯法对落叶松规格材出材率及质量的影响
5.
This pest is harmful to the main tip of red pine,and influences the timber production rate and timber quality of red pine ,down to seed quantities of mother forests.
此虫危害红松主梢，影响红松的出材率和材质以及母树林的结实量。
6.
A Study on Taper Equation and Stand Outturn Tables of Wood Sorts for Japanese Larch
日本落叶松削度方程和林分材种出材率表的研究
7.
Study on the Stand Merchant Ratio Prediction Model Base on Artificial Neural Network;
基于人工神经网络林分材种出材率预测模型研究
8.
Research on Establishment of Dual Volume Table and Timber Volume Table of Pinus Massoniana and Cunninghamia Lanceolata Plantations in Guizhou Province
贵州马尾松、杉木人工林二元材积表及出材率表编制研究
9.
Working out Cunninghamia lanceolata Plantation Stand Species Outturn Percentage Table of Youxi National Forest Farm
尤溪国有林场杉木人工林林分材种出材率表的编制
10.
Compiling of the one-way function merchantable volume table of E. urophylla × E. grandis in Xijiang Forestry Bureau
西江林业局尾巨桉人工林一元材种出材率表编制
11.
Effect of Export Drawback Rate,Appreciation of RMB and Export Tax Items for Aluminum Products on the Exportation of Aluminum Goods;
分析出口退税率、人民币升值及铝材出口税目对铝材出口的影响
12.
INFLUENCE OF BUILDING MATERIAL PROCESS TECHNOLOGY ON RADON EXHALATION
建筑材料加工工艺对氡析出率的影响
13.
A Comparison between Effect of Export VAT Refund and Currency Exchange Rate on Steel Export Market;
出口退税与汇率对我国钢材出口影响的比较
14.
Analysis and countermeasure on the launching rate of in-class experiments for new textbooks for senior middle schools;
高中新教材随堂实验开出率的调查分析及对策
15.
Indoor Radon Concentrations and Radon Exhalation Rates of Building Materials in Shanghai
上海市室内氡浓度水平与建材氡析出率的研究
16.
Representative equipment is a power bicycle used in lying on your back exercise recommended by Tectxix Company.
有代表性的 器材是Tectxix公司推出一种仰卧锻炼用的功率自行车。
17.
so that only a very small pipe is formed, hence the name "balanced steel".Its yield of good steelis about 85 %.
结果只有很小的缩孔出现，因而获名"半镇静钢"。其成材率大约为85％。
18.
The isolation frequency of the species was high from those infected tissues and the beetles indicating that B. ce p acia was one of the main species carried by pine wood nematodes throughout the ir l ifetime.
在分离过程中该菌出现频率较高 ,说明是松材线虫携带的主要细菌 .