气体吸附法 meaning in English

gas absorption operation
gas adsorption method

Determination of the specific surface area of powders solids by gas adsorption method
气体吸附法测定粉末固体的特定表面面积
Determination of the area per unit mass of powders specific surface by means of gas adsorption . various readings of the basic method
用气体吸附法测定粉末特殊表面单位质量的面积.基本方法的各种仪器指示
Determination of the area per unit mass of powders specific surface by means of gas adsorption . b . e . t . method : volumetric measurement of the adsorption of nitrogen at low temperatures
用气体吸附法测定粉末的单位质量面积比面积. bet法：低温下氮吸附的容量测定法