The lower the molecular mass of gas ,the faster it will diff

the molecular logic of 请教英语句子结构是否正确,“through the mass balance Eq.(1) of gas in cont molecular biology of the cell 几区? It is said that the gas company will raise the gas fare ____ the mass The new model will be in mass production by the end of the y the mass of 与 a mass of 有啥区别? the effect of water on molecular relaxation of these polymer Molecular Biology of the Cell 杂志的影响因子 英语翻译Molecular dynamics (MD) simulations have been one of the 英语翻译To some,the corporate shuffle of Vectorsuggests the diff mass的用法the mass of 和 a mass of 有什么区别？