GPS survey and the method of high density resistance rate are two kinds of the advanced practical techniques in admin...
GPS测量及高密度电阻率法两种先进实用技术，是项目实施的先进手段。
That engine would carry the hypersonic craft to an altitude where air density and resistance are less.
引擎将高超音速飞机带向空气密度、阻力比较稀少的高度。
The control group showed a decrease in soleus muscle mass and strength, the development of insulin resistance, and a loss of bone mineral density and resistance to breakage.
控制组的老鼠表现出比目鱼肌质量和力量下降，胰岛素抵抗上升，骨密度和抗折能力降低。
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