surface-volume ratio

2800）测量。其中包含很多测试理论，例如常用的单点及多点BET（Brunauer-Emmett-Teller）理论，Langmuir理论，t-plot理论，炭黑外比表面积STSA等理论。 表面积体积比（surface-area-to-volume ratio） 熊毅等编，土壤胶体.科学出版社.1985.

Morphological characteristics of lunar craters with small depth/diameter ratio. II. Moon and the Planets. 1980, 23: 113–126, 122. Bibcode:1980M&P....23

vehicle mass ratio, ln {\displaystyle \ln } refers to the natural logarithm function. The mass ratio of a vehicle is defined as a ratio the initial vehicle

_{l}={\frac {el}{2m_{e}}}} , me 是电子质量, μl 是磁矩, l是角动量; 这个比例被称作 gyromagnetic ratio（旋磁比）. 原子中的电子从它们自己的角动量和它们围绕原子核的轨道动量贡献磁矩。与来自电子的磁矩相比，来自原子核的磁矩是微不足道的。

pores. The cement gel contains about 40 to 55% of pores in volume, has an enormous pore surface area (roughly 500 m2/cm3), and is made up of sheets of colloidal