Two broad sub-fields of philosophy are logic and the history of philosophy.

哲学涵盖很广的两个次领域为逻辑学和哲学史。

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Dragon is a mountainous county of mountainous territory, known as "Eight mountains of water a sub-fields," said.

青龙是山区农业县，境内山多地少，素有“八山一水一分田”之称。

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Recall from the discussion of Figure 2 in the first article that the sub-fields of req-body are (omitting some of the optional fields).

回想在第一篇文章图2的讨论中，req - body的子字段有(去掉了一些可选字段)。

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Apart from the sub-salt fields, Petrobras is exploring 270 blocks in the Gulf of Mexico and over 200 more onshore in Brazil.

ECONOMIST: Brazil's Petrobras

Green aficionados are familiar with the statistic that the sun bathes the Earth in trillions of barrels of energy (in oil equivalent terms), and less familiar with the fact that total known hydrocarbon resources are also countable in the trillions of barrels (from the oil-sands and ultra-deep-water sub-salt fields, to methane hydrates and coal, not to mention shale gas).

FORBES: Steve Forbes Is Wrong

In most high-tech fields today, the know-how needed to make a component, sub-assembly or finished product has progressed too far and too fast for the average worker to be able to propose any useful innovations.

ECONOMIST: The land of disappointments | The