1. Spiders, mites, etc. come under the head of Arachnida.
蜘蛛、螨等归入蛛形纲。

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2. The energy content and their seasonal variations of Arachnida in arid environment were studied.
研究干旱地区蛛形纲动物的含能值变动规律。

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3. The energy content and their seasonal variations of Arachnida in arid environment were studied.
研究干旱地区蛛形纲动物的含能值变动规律。

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