1) method of tree classification
林木分级方法
2) The class of stems
林木分级
3) classification method
分级方法
1.
Research on classification method of public hazard levels for natural gas well involving hydrogen sulfide;
含硫气井公众危害程度分级方法研究
2.
Study on Classification Method of Rock Slope Stability in Highway Construction in Mountainous Region;
山区高速公路岩质边坡稳定性分级方法研究
3.
This paper is mainly about classification for burning behavior of building materials, including differences between the new classification method and the former one.
本文简要介绍了我国建筑材料燃烧性能分级方法的最新进展,包括新旧分级方法的不同和相关政策,以及新分级方法采用的试验方法和检测设备。
4) fractionation scheme
分级方法
1.
The article overview the people of the past study the phosphoric ratings method and results,analyses limitations on the tra- ditional soil phosphorus fractionation scheme,points out the function of the studies result that assessment of soil phosphorus fertility.
综述了前人研究磷的分级方法及成果,分析了传统土壤磷素分级方法的局限性,指出了其研究结果在评价磷素肥力中的作用。
5) grade method
分级方法
1.
The study for the effect of resistance appraisal to cercospora black spot by different grade methods in sweet potatoes;
甘薯黑斑病抗性鉴定不同分级方法效果研究
2.
The normal distribution curve grade method of forest tree seeds was suggested in this paper, that is determine the rate of every grade according to the requirement from production, management and user of forest tree seeds, and determine the specific indexes of every grade by using the normal distribution value formula u=(x- x )/s .
林木种子分级方法较多，用于制定国家种子分级标准的方法有４种，均有缺欠。
6) grading method
分级方法
1.
Theoretical analysis of estimating data at fitting for grading method;
判断数据适合分级方法的理论分析
补充资料：林木
1.树林。 2.木材。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条