Determination of the area per unit mass of powders specific surface by means of gas adsorption . various readings of the basic method 用氣體吸附法測定粉末特殊表面單位質量的面積.基本方法的各種儀器指示
What is absorbed dose ? absorbed dose is a physical quantity to measure the radiation energy absorbed by unit mass of substances 吸收劑量是用來量度電離輻射與物質相互作用時,單位質量物質吸收輻射能量多少的一個物理量。
What is absorbed dose ? absorbed dose is a physical quantity to measure the radiation energy absorbed by unit mass of substances 吸收劑量是用來量度電離輻射與物質相互作用時,單位質量物質吸收輻射能量多少的一個物理量。
If the weight at each receiver is set to unit mass , the canter of gravity of an array is the actual array center 提出了關于組合中心確定的重心原則,即把單個檢波器的權值視為單位質量,由此確定其組合圖形的重心應為實際的組合中心。
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 用氣體吸附法測定粉末的單位質量面積比面積. bet法:低溫下氮吸附的容量測定法