center of mass system 质心系 ; 质心参考系 ; 质心系统
centre of mass system 质心系 ; 惯心系统
center of mass coordinate system [力] 质心坐标系
center-of-mass system 质心 ; 质心系统
cente-of-mass system 质心系统
An estimated 99.85 percent of the mass of our solar system is contained within the Sun, while the planets collectively make up most of the remaining 0.15 percent.
太阳占据了太阳系总质量的大约99.85%,而在剩余的0.15%中,行星占据了大部分。
Together with the kilogram, initially the mass of a decaliter of distilled water, it formed the basis of the metric system.
它和千克(10升蒸馏水的重量)一起构成了公制计量的基本单位。
You just need a few macroscopic variables that are very familiar to you, like the pressure, the temperature, the volume, the number of moles of each component, the mass of the system.
你只需要某些你非常熟悉的宏观变量,比如压强,温度,体积,每个组分的摩尔数,系统的质量。
They used a system of measurement called the Body Mass Index to define words like obese and overweight.
VOA: special.2009.07.21
system is the opposite of the open system, no mass and no energy can flow through the boundary.
孤立系与开系正相反,没有质量或能量,能流过它的边界。
But they have really had a big scaling down of the mass transit system this year.
但是今年确实大幅度削减了公共交通。
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