Figures released by the Office for National Statistics show that population density in England is already almost double that of Germany and four times the figure for France.
根据全国统计局发布的数据来看，英国人口密度几乎是德国的一倍、法国的四倍。
The emulation results showed that the IR smoke can fulfill the purpose of jamming when it is released in right time and spot, and when the thickness and the density of the IR smoke reach the baseline.
通过仿真计算，发现只要烟幕施放时机、位置得当，烟幕厚度和密度达到一定要求，足以达到干扰目的。
Sometimes, the amount of female wasps and hosts in single tube could be based on the density of target pests and the amount of female wasps released on one plant.
也可以根据防治实际中目标害虫的虫口密度及单株放蜂数量来确定每管的接入寄主数和种蜂数。
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