But factors such as low population intensity and low land productivity restrict the efficient demand for road transport.
但样本县因人口密度过小、耕地生产率低下等因素限制了对公路运输的有效需求。
The actual level of intensity depends on such factors as the physical layout, population density, and productive activities of a metropolis.
实际的强度水平取决于诸如大城市的物理布局、人口密度和生产活动之类的因素。
Being very high intensity, this focus induces a population inversion in the oxygen atoms, ensuring that there are more excited than non-excited atoms.
在高强度下，这种聚焦会使氧原子的粒子束反转，确保了激发的原子多于未被激发的原子。
By quantitative analysis on mean staying time and intensity of floating population in Beijing, This article puts forward corresponding policy recommendations.
本文通过对北京市流动人口的平均滞留时间和相对滞留强度的定量分析，提出有针对性的政策建议。
The information dimension of population patterns quantifies the scale variation degree of pattern intensity, and discloses the unevenness of individual distribution.
种群格局信息维数能够刻划格局强度的尺度变化程度，揭示出种群个体分布的非均匀性状况。
Variance analyses indicate the cluster intensity of this population is significant difference between the upper and lower crowns of citrus trees.
方差分析表明该种群的聚集强度在树冠的上、下部间差异显著。
And it concentrates on the impacts of population expansion and changes in GNP energy intensity on the per capita carbon emission.
并重点分析了人口增长、能源消费强度变化的人均碳排放的影响。
Some empirical formulas for rapid estimating life loss with consideration of seismic intensity and population density as parameters are given.
并以地震烈度和人口密度为参数，给出快速评估人员伤亡的经验公式。
The population pattern was of clustered distribution, with the aggregating intensity increased with age.
种群分布格局总体上呈聚集型，随年龄增加聚集强度增加。
Effects of butralin on 3 major groups of soil microorganism population and soil respiration intensity were studied with cultivation, closed or direct absorption methods in laboratory, respectively.
通过室内培养试验，研究了仲丁灵对土壤中三大类微生物种群动态变化和土壤呼吸强度的影响。
There were identical changes between seale, intensity, grain of ramet population distribution pattern and the stocking intensity in horizontal space.
分株种群集聚分布格局的规模、强度和纹理在水平空间上与放牧强度的变化表现出一致性的关系。
By studying the photoelectron populations on different laser intensities, we found the nonlinear relationship between laser intensity and photoelectron population.
通过研究不同激光强度下光电子电离几率，发现了电离几率与激光场强度的非线性变化关系。
Influence factors of malaria epidemic were investigated, including population features, geographical distribution, epidemic focus and intensity, and the species of Anopheles.
调查影响疟疾流行的人群及地理分布特征，暴发点分布、流行程度等社会、经济和自然因素，以及媒介按蚊的种群和密度。
Researchers reviewed three outbreaks in early 2004 through late 2005. They looked at five variables: duck abundance, human population, chicken Numbers, elevation and rice cropping intensity.
研究人员检查了2004年初到2005末的三次爆发，他们注意到了五个变化的因素：鸭子的多少，人类的人口，鸡的数量，海拔和稻米种植密度。
When photosynthetic intensity was 60%, net photosynthetic intensity of chinese fir population was the biggest.
光照强度60％时，杉木林净光合强度最大，大于或小于60％都不利于光合强度的提高。
Microwave emission lines with anomalous intensity ratio would be produced when the relativistic electrons move through a, molecular cloud with a certain population inversion.
相对论电子在某种粒子数反转布居的分子云中穿行时，可以产生具有反常强度比的微波发射谱线。
They looked at five variables: duck abundance, human population, chicken Numbers, elevation and rice cropping intensity.
他们考察了五个变数：鸭丰度，人口，鸡只数量，海拔高度和水稻种植密度。
They looked at five variables: duck abundance, human population, chicken Numbers, elevation and rice cropping intensity.
他们考察了五个变数：鸭丰度，人口，鸡只数量，海拔高度和水稻种植密度。
应用推荐