[电] 影像比

image ratio的用法和样例：

例句

And the approximated linear dependence of the field enhancement factor on the aspect ratio of the carbon nanotube field emitter was derived.运用模拟电荷和镜像电荷导出单根纳米碳管尖端场增强因子关于长径比的简单线性公式，其结果明显优于悬浮球模型。

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China's sex ratio is quite worrying nowadays. According to census data, China's sex ratio at birth was 108 males to every 100 females in the early 1980s, only slightly above the natural rate of 103 to 107. In 2000 the ratio was 116.9 males to 100 fem

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