词汇	离子质谱
释义	离子质谱医ion mass spectrum
随便看	ratio of ketogenic to antiketogenic substances ratio of knotting tension ratio of labor cost ratio of lay ratio of leaf age ratio of leakage-distance ratio of lear to bone ratio of length and radius Ratio of length and width ratio of length to diameter ratio of length to span ratio of length to width ratio of lens aperture ratio of less inequality ratio of letters and visits ratio of liabilities Ratio of liabilities to assets ratio of liabilities to net worth ratio of lift coefficient to drag coefficient Ratio of lift coefficient to drag coefficient Ratio of light travelling distance ratio of light weight to loading capacity ratio of lime-ash Ratio of lime powder content ratio of liquid to powder