Within his lifetime, Malthus was able to witness incredible surges in mankind's agricultural productivity, thanks to inventions like the steam engine and the cotton gin.

在Malthus一生中，他能够目睹到人类农业生产力的巨大飞跃，这要感谢蒸汽机和轧棉机这些发明。

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The research of search engine for agriculture is extremely essential, when a lot of agricultural information is required by users today.

用户对农业信息的需求越来越多，农业搜索引擎的开发变得十分必要。

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The author in the use of agricultural diesel engine common faults, for example, briefly discusses its causes and diagnosis.

文章以农用柴油机在使用中的常见故障为例，简要论述了其形成原因及诊断。

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Exports have been the engine of growth and agricultural products have been star performers.

ECONOMIST: Stranded on the farm?

This aid does not reach all Ghanaians, especially those in the traditional agricultural industries that used to be the engine of Ghana's economy.

ECONOMIST: Ghana

Agricultural exports that used to be the engine of the economy have shriveled, and foreign currency to import goods is hard to come by.

NPR: Report Describes a Zimbabwe in Crisis