1) cutting by the diameter limit
按直径限度采伐
3) cutting quota
采伐限额
1.
Forest cutting quota based on the data of continuous forest inventory.;
以一类清查资料测算采伐限额的探讨
2.
Forest cutting quota system is the important content of cutting management.
森林采伐限额制度是森林采伐管理的重要内容,其目的是通过对森林采伐数量来控制森林蓄积量。
4) forest cutting quota
采伐限额
1.
Implementation of the forest cutting quota is an efficient method for controlling the consumption of forest resources.
实行森林采伐限额制度是控制森林资源消耗的有效手段。
5) Logging quota
采伐限额
1.
Through a review of the problems and shortcomings existed in the forest logging quota management system in our country,the paper proposes to establish index banking system under the condition of circulating index and also supplies designs for allocation and circulation of the logging index.
回顾我国森林采伐限额制度存在的问题与不足,提出在指标可流转前提下建立采伐指标银行体系,并进行了采伐指标配给和流转环节等设计。
6) graft amount
伐根直径
1.
The result shows that the different variety of poplar have no relationship with susceptibility to graft affinity because they are the same factions, and the diameter of stump has positive effect on growth and graft amount has no effect, and it is an optimum to graft four grafts on the diameter 26～30 cm stumps, and three on the 25～25 cm stumps.
为了搞清杨树嫁接苗成活率和生长量与伐根直径及嫁接株数的关系 ,对杂交杨伐根嫁接冀秦 1号杨、冀秦 2号杨、冀秦 3号杨、山海关杨、加杨、 1- 2 14杨进行了研究。
补充资料：当量比表面直径、表面积体积平均直径
分子式：
CAS号：
性质：又称当量比表面直径、表面积体积平均直径。是颗粒群表面积分布的平均直径。其意义为与颗粒群的粒形相同，总体积相同、总表面积相同，且粒度均匀的一个假想颗粒群的粒度。亦即指与该颗粒群的粒形相同，比表面积相同的一个颗粒的粒度。
CAS号：
性质：又称当量比表面直径、表面积体积平均直径。是颗粒群表面积分布的平均直径。其意义为与颗粒群的粒形相同，总体积相同、总表面积相同，且粒度均匀的一个假想颗粒群的粒度。亦即指与该颗粒群的粒形相同，比表面积相同的一个颗粒的粒度。
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