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1)  selection of cocoon for egg production
种茧选择
2)  Tree species selection
树种选择
1.
Comparative analysis on tree species selection for greening and greenery arrangement in the isolated grassland between the fast lanes and slow lanes;
快慢车道隔离带绿化树种选择和布局比较分析
2.
Study on tree species selection and planting technology ofsand break and road protection forest belt along Bao zhong railroad;
宝中铁路防沙护路林带树种选择及营造技术研究
3.
The paper introduces the basic situation of implementing the project of forest rehabilitation from slope agriculture in Lijiang and details of tree species selection for the forestation in the project,and evaluates the corresponding afforestation effect.
介绍了丽江市退耕还林工程实施的基本情况和树种选择的详细情况,分析了工程所选择树种的结构及分布,对所选树种的造林成效进行了评价,分析指出了存在的问题,提出了丽江市退耕还林工程树种选择的相关建议,推荐了一些适合在丽江退耕还林工程中选用的树种。
3)  species selection
物种选择
1.
Analyses on species selection and community collocation of macrophyte in lake restoration;
湖泊水生植被恢复物种选择及群落配置分析
2.
Utilization of species selection and optimum quantity on stocking in northern area of South China Sea
南海北部放流物种选择和主要种类最适放流数量估算
3.
Novel genetic algorithm based on species selection for solving constrained non-linear programming problems
基于物种选择的遗传算法求解约束非线性规划问题
4)  tree selection
树种选择
1.
Based upon introduction of land use scope and conditions in greening of city rivers the principles for tree selection is mentioned.
在介绍了城市河流绿化特点、绿化用地范围及条件的基础上,阐述了树种选择的基本原则,并对城市河流绿化设计的原则、要点及其对水体、水体边缘、库边、滨河路等的设计进行了论述,最终达到生态、环境、经济的综合效益。
2.
The text took the 19 tree species as example and evaluate the ecological characters of tree species, and studied the arrangement mode of tree species, combining structure theory of ecological community with the ecological characters of tree species, then analyzed tree selection, the intraspecific and interspecific relationship, the tree arrangement mode in courtyard greenland, th.
本研究应用LI-6200 光合仪对乌鲁木齐具代表性的19 种园林树木光合、水分生理生态指标进行测定,以19 种树木为例对树种生态习性进行评价,基于树种的生态习性,结合生态群落结构理论研究树种配置结构模式,对庭院树种配置中树种选择、种内、种间关系及配置结构模式进行分析和探讨,以期为庭院绿化建设提供科学依据。
5)  bacterium selection
菌种选择
6)  choice of coal
煤种选择
补充资料:树种
1.树木的种类。如针叶种﹑阔叶种等。 2.树木的种子。
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