大爆炸后,就有了时间和空间。 大爆炸初的1/10秒,宇宙密度比水大3000万倍,温度是300亿度。
Within the first 1/10 seconds of The Big Bang, the density of the universe was 30 million times larger than that of water with the temperature of 30 billion degrees.
利用不同温度下纯水的密度值,给出了水的体胀系数的计量原理、公式和方法。
This article gave the measuring principle, formula and method of waters expansion coefficient by using density value of pure water in different temperature.
非饱和土的基质吸力与其中水—气体系的温度、孔隙水的密度和孔隙气的相对湿度有关。
Matric suction is relevant with temperature of water-air system, density of pore-water, and relative humidity of pore-air of unsaturated soil.
利用高速离心机法测试了在不同温度和密度条件下的非饱和黄土的土水特征曲线。
Under different temperature and densities, the soil-water characteristic curves of unsaturated loess were deterrined by centrifuge tests.
利用高速离心机法测试了在不同温度和密度条件下的非饱和黄土的土水特征曲线。
Under different temperature and densities, the soil-water characteristic curves of unsaturated loess were deterrined by centrifuge tests.
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