atomic ratio of calcium and phosphorus elements  钙磷原子比

atomic ratio of copper to zinc  铜与锌原子比

Atomic Ratio of Hydrogen to Carbon  氢碳原子比

atomic ratio of moderator to fuel  原子慢化比

hydrogen to carbon atomic ratio  氢碳原子比

the mean atomic ratio of deuterium to titanium  氘钛原子比

atomic moderation ratio  原子慢化比; 原子缓和比

Atomic Trapping-Flame Atomic Spectrometry  原子捕集-火焰原子吸收光谱法

axial compression ratio and slenderness ratio  轴压比和长细比

B-C ratio (benefit-cost ratio)  边界代表

benefit-cost ratio (B-C ratio)  损益平衡点

focal ratio (=focal-length ratio)  焦比

grinding ratio(G-ratio)  磨削比

maximum ratio combing according to signal to noise ratio  基于信噪比最大比加权

recirculation ratio recycle ratio  压力调节阀

recycle ratio recirculation ratio  经济回流比

signal-noise ratio (=signal-to-noise ratio =SNR)  讯噪比

stop ratio and start ratio in time segment  时段停车率和时段启动率

price--earnings ratio;P/E ratio  市盈率; 市价盈利率