As an advanced conformal therapy, Intensity-modulated radiotherapy (IMRT) can increase the gain ratio of radiotherapy and improve the local control of the tumor.

调强放疗(IMRT)是一种先进的适形放射治疗方法，能提高放射治疗的治疗增益比，促进肿瘤的局部控制。

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The result showed that the effect on the growth of the two groups were very similar. but in the Bu quinoline iron group, feed to gain ratio decreased 3.1%, cost to gain ratio decreased 2.7%.

结果表明：两组促生长效果差异不显著，但卟啉铁组比阿散酸组单位增重耗料降低3.1%，单位增重成本降低2.7%。

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By tracking this ratio over time, he can determine how long gas has taken to reach the surface and gain clues to the chemical, thermal, and mechanical state of the rocks the gas is passing through.

通过追踪该比率随时间的变化，他可以确定氡气到达地表需要花费多长时间，同时获得气体所通过的岩石的化学、热力学和机械状态。

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That might not seem like much, but considering most rigid robot arms can only lift a fraction of their own weight, it represents a sizable gain in strength-to-weight ratio.

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The last 40 up First Five Days were followed by full-year gains 34 times for an 85.0% accuracy ratio and a 13.6% average gain in all 40 years.

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"The last 35 years, the first five days were followed by full-year gains 30 times, for an 85.7% accuracy ratio and a 13.7% average gain in all 35 years, " reports Jeffrey Hirsch, editor of the Almanac Investor Newsletter, and son of Yale Hirsch.

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