1.
Relationship between the Population Change of Cladocera in Reservoir and Environmental Factors
水库中枝角类种群数量变化与环境因子的关系
2.
Study on the Mechanism of the Population Dynamic Variation of the Ceroplastes Japonicus in Jujube Wood;
枣林日本龟蜡蚧种群数量动态变化机理研究
3.
Study on Population Quantity of Mergus squamatus in Yiyang Wintering Habitat from 2001 to 2008
2001～2008年中华秋沙鸭弋阳越冬区种群数量的变化
4.
Heliophytes were declining and mesophytes were developing further.
结果表明该群落在演替过程中，其种类结构没有大的变化，但优势种群的个体数量有一定的变化。
5.
Quantitative Characteristics and Regulation Study on Reproductive Ramets of Apocynum Venetum Population in the North China Plain
华北平原罗布麻种群生殖分株数量特征及变化规律
6.
The range of Cv is 15.6%-58.3% in 8 plots.
8个种群的变异系数的变化范围为15.6%-58.3%。
7.
a very useful tool for scale-up is the dimensionless group. This is the grouping of system variables so as to cancel out their dimensions.
在放大中使用的一个很有用的工具是无量纲数群。这是系统变量无因次化的一种组合。
8.
A variation of a physical quantity,used to convey data.
用于传递数据的一种物理量的变化(量)。
9.
Periodic local catastrophes reduce populations.
周期性的局部地区的灾变降低了种群的数量。
10.
Study on Population Quantity Variation and RAPD in Lagurus Lagurus;
草原兔尾鼠种群数量变动及随机扩增多态性DNA
11.
Study on Ecology of Denitrobactcria in Jiulong River Estuary
九龙江口反硝化菌群数量的潮汐、季节、昼夜变化
12.
That is to say,IPC is the multiple caus-ing change of population dynamic trend.
控制指数值即为引起种群数量发展趋势发生改变的倍数。
13.
The Research of the Diversity, Population Dynamics and Breeding Ecology of the Dominant Species of Wetland Birds in the HengShui Lake;
衡水湖湿地鸟类多样性、种群数量动态变化及重要水鸟繁殖生态学研究
14.
The Model of Clusters Knowledge Change in Knowledge Spillovers;
小企业集群知识溢出中知识变化的数量模式
15.
Common species composition,quantity variation and dominant species of planktonic microalgae in low salinity culture ponds
低盐度养殖池塘常见浮游微藻的种类组成、数量及优势种群变动
16.
A STUDY OF THE POPULAION DYNAMIC OF BROWN PLANTHOPPER Ⅱ.SOME BIOLOGICAL PARAMETERS AFFECTING FIELD POPULATION DYNAMICS
褐飞虱种群动态的研究 Ⅱ.影响田间种群数量变动的一些生物学参数
17.
RELATIONSHIP BETWEEN POPULATION FLUCTUATION OF FLEAS ON MARMOTS AND DYNAMICS OF PLAGUE EPIZOOTICS
旱獭寄生蚤种群数量的变动与鼠疫流行动态的相互关系
18.
Studies on the Population Ecology and Module Characteristics of Osmanthus Fragrans as the Constructive Species in Secondary Community;
次生林建群种桂花种群及其构件数量特征研究