1) critical density of the population crowding
种群聚集临界密度
1.
Using the critical density of the population crowding(m0=θν(1-δ)),the successive system of space pattern was quantitatively described.
根据种群聚集临界密度（ｍ０＝θ１／（１－δ）），可对空间格局连续统作出定量描述，按参数δ可将生物种群划分为“聚集度逆密度制约型”、“聚集度密度制约型”和“聚集度非密度制约型”３种类型。
2) critical zero frequency of population aggregation
种群聚集临界零频率
1.
The continuum of spatial pattern can be described quantitatively according to critical zero frequency of population aggregation (P_00＝exp(-(α/Using b -β,biological population can be divided into three types in terms of aggregation degree,i.
根据种群聚集临界零频率，可对空间格局连续统作出定量描述,按参数(b'-β)可将生物种群划分为“聚集度非零频率制约型”、“聚集度逆零频率制约型”和“聚集度零频率制约型”3种类型。
3) critical aggregation concentration
临界聚集浓度
1.
Solubilization was investigated by UV spectrophotometer;the critical aggregation concentration(cac) obtained by fluorescence spectroscopy.
用超微透析法制备PEG-PBLG聚合物纳米粒,荧光芘探针法测定纳米粒的临界聚集浓度(cac)。
4) Critical density
临界密度
1.
Through measurement and analysis the critical density of Kerner s non-linear model, the propagation speed of the wide moving jam and the unimpeded velocity of Greenshields s model are obtained.
以北京市一个路段的实际录像资料为例,通过测量和分析获得Kerner非线性模型中的临界密度、宽运动堵塞的传播速度和Greenshields模型中的畅行速度等参数。
2.
Different from the typical evaluation index-level of service,this paper adopts critical density ratio to evaluate the operation condition of urban highway basic sections,which synthetically reflects the requests of both road managers and users.
与传统的服务水平评价不同,采用能够综合反映道路管理者和道路使用者共同要求的评价指标——临界密度比对城市快速路基本段的运行状况进行评价;根据快速路交通信息采集系统提供的大量数据,比选了适合的交通流模型,并对临界密度进行标定;最后给出了评价指标的等级划分和对应状态的描述。
3.
The experimental results showed that there was a critical density for transition to detonation at certain confinement condition.
不同密度炸药的DDT性能不同,较低密度的炸药更容易发生DDT现象,固体压装B炸药存在一个燃烧转爆轰的临界密度值。
5) population density
种群密度
1.
Relationships between Phodopus campbelli age and population density and Capillaria hepatica infective rate;
黑线毛足鼠年龄和种群密度与肝毛细线虫感染率的关系
2.
Population Density and Seasonal Variation of Flies in Different Areas in Fujian,China;
福建省不同地区蝇类种群密度与季节消长
3.
Effect of host species,host distance and population density on dispersal activity of Bemisia tabaci;
寄主种类、距离和种群密度对烟粉虱扩散的影响
6) critical congregate concentration
临界胶束聚集浓度
补充资料：临界密度
分子式：
CAS号：
性质：物质处于临界状态时的密度。是临界比容的倒数。各种物质的临界密度不同，如氧是0.430；氨是0.235，氯是0.573等。
CAS号：
性质：物质处于临界状态时的密度。是临界比容的倒数。各种物质的临界密度不同，如氧是0.430；氨是0.235，氯是0.573等。
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