quiescent atmosphere density 静大气密度
optical density of atmosphere 大气光学密度
varying density atmosphere 变密度大气
the density of atmosphere 大气密度
high-density atmosphere 高密度大气
so density of atmosphere 大气so2浓度
The influence of atmosphere density and initial velocity on the parachute inflation times, inflation distance and Max strain of suspension-line were analyzed by the simplified model.
运用简化的模型初步分析了在不同大气密度、初始开伞速度下的充气环境对降落伞充气时间、充气距离，伞绳最大拉力的影响。
It will clear up questions about its curiously high density, whether it has ice at its poles and where its atmosphere comes from.
这将解开水星密度为何如此之高，水星的两极是否存在冰以及水星的大气从何而来等疑问。
Scientists have known for a long time that aerosols such as soot, dust and other small particulate matter, alter cloud density and the radiative balance of the atmosphere.
科学家们很早之前就发现，诸如煤烟、灰尘和其他细小的微粒，能改变云体的密度及大气的辐射平衡。
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