2) age classes
年龄阶段
1.
The water-holding capacity of canopy,vegetation layer under canopy and litter layer,the water-holding capacity and permeability of soil as well as their changes with growth of stands in Acacia mangium plantations of 3 different age classes(4-year-old,7-year-old and 11-year-old)were further studies.
对马占相思人工林3个不同年龄阶段(4,7 a和11 a)的林冠层、林下植被层、枯枝落叶层、林地土壤持水量和渗透性能以及它们随林分年龄的变化规律进行了比较分析。
2.
Carbon density,storage and spatial distribution of three different age classes(4-year-old,7-year-old and 11-year-old) of Acacia mangium plantation ecosystems were investigated in the city of Nanning,Guangxi.
对南宁市马占相思人工林3个不同年龄阶段(4,7和11年生)生态系统的碳素密度、贮量及其空间分布特征进行研究。
3) age stage
年龄阶段
1.
The contemporary reading group can be surveyed from different aspects such as relationship, specialization level , social status, age stage, living region and history of existence.
对于现时的读者类群 ,可以分别从关系定位、专业水平、社会身份、年龄阶段、生活地域和存在历史等多维度加以检视。
4) Youth stage
青年阶段
1.
juvenile stage, youth stage, adult stage and the nation team, which should proceed step by step, stage by stage.
一个国家完整的篮球竞赛体系应该由少年阶段、青年阶段、成年阶段、国家队四个部分组成，四个阶段相继延续，任何一个环节的管理不当都会直接影响到该国篮球运动整体的发展，特别是青年阶段作为承下启上的关键性阶段，它像“杠杆”和“天平”一样调节着一国篮球运动发展的整体进程。
5) The midstream of life.
中年阶段
6) annual development phase
年发育阶段
补充资料：百年
①很多年，极言时间之长：百年不遇的水灾｜百年大计｜十年树木，百年树人。②一生；一辈子：百年好合｜百年之后。
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