Methods To contrast the disparity of soil type, soil use, and basic characteristics, in particular microelement contents in high_mortality area and low_mortality area of esophageal cancer.

方法对比食管癌高、低死亡率区土壤类型、利用方式及土壤一般特性，尤其是在微量元素含量上的差异。

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The advantage of biological control in contrast to other methods is that it provides a relatively low-cost, perpetual control system with a minimum of detrimental side-effects.

与其他方法相比，生物防治的优点是它提供了一种成本相对较低、有害副作用最小的永久性防治系统。

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This assumption is in sharp contrast to the decades-old traditional methods of developing mainframe applications.

这种假设与十年前开发主框架程序的老方法差异十分巨大。

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In contrast, Business Week said, the lower-ranked undergraduate courses tended to still follow the older methods of having less business theory and more practical application.

CNN: Starting out young