1) the coverage allowed by economy
经济允许覆盖度
1.
By analyzing and comparing several concepts about vegetation coverage given by other specialists,several new threshold of vegetation coverage are put forward:the coverage allowed by ecology,the coverage demanded by ecology and the coverage allowed by economy,then the methods are given to calculate.
通过对已有的关于植被覆盖度的概念进行分析比较,提出几个新的植被建设覆盖度阈值生态允许覆盖度、生态要求覆盖度和经济允许覆盖度,并给出了它们的计算方法。
2) the coverage allowed by ecology
生态允许覆盖度
1.
By analyzing and comparing several concepts about vegetation coverage given by other specialists,several new threshold of vegetation coverage are put forward:the coverage allowed by ecology,the coverage demanded by ecology and the coverage allowed by economy,then the methods are given to calculate.
通过对已有的关于植被覆盖度的概念进行分析比较,提出几个新的植被建设覆盖度阈值生态允许覆盖度、生态要求覆盖度和经济允许覆盖度,并给出了它们的计算方法。
3) allowed economic loss ratio
经济允许损失率
1.
It was confirmed that the economic injury level of plateau pika was 130 effective holes/hm2 and the allowed economic loss ratio was calculated as 11.
9%,而经济允许损失率只有11。
4) Economical green manure mulching
经济绿肥覆盖
5) economic infestation level
经济危害允许水平
1.
To determine the influence of Alternanthera philoxeroides on the growth of garlic and its economic infestation level,additive series experiment and curve fit were adopted to study the changes of yield characters of garlic under different density of Alternanthera philoxeroides.
为明确空心莲子草对大蒜生长的影响及其经济危害允许水平,采用添加系列试验和模型拟合的方法观察了不同空心莲子草密度下大蒜各生长性状的变化规律。
2.
To determine the influence of barnyardgrass on the growth of pad- dy rice and its economic infestation level,additive series experiment and curve fit were adopted to study the change of rice yield characters under different density of barnyardgrass.
为明确稗对水稻生长的影响及其经济危害允许水平,采用添加系列试验和模型拟合的方法研究了不同稗草密度下水稻各产量性状的变化规律。
3.
To determine the economic infestation level and economic threshold of F.
为明确黄顶菊在棉田中的经济危害允许水平、经济阈值以及竞争临界期,采用添加系列试验和模型拟合的方法,在田间条件下研究黄顶菊不同密度对棉花的生长性状及产量的影响。
6) admissible covering
容许覆盖
1.
In this paper, we define the mean oscillation spaces on the homogeneous groups by constructing k admissible coverings.
本文通过构造ｋ－容许覆盖，定义了齐次群上平均振荡空间，并得到该函数空间上的若干等价范数刻划，拓广了文［４］中的结
补充资料：表面覆盖度
分子式：
CAS号：
性质：在吸附平衡时，吸附剂表面被吸附质粒子覆盖的分数，常用θ表示。对于单层的吸附，θ=V/Vm，V是平衡吸附量，Vm是单分子层饱和吸附量。
CAS号：
性质：在吸附平衡时，吸附剂表面被吸附质粒子覆盖的分数，常用θ表示。对于单层的吸附，θ=V/Vm，V是平衡吸附量，Vm是单分子层饱和吸附量。
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