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Speleology

Speleology (also spelled spelæology or spelaeology) is the scientific study of caves and other karst features, their make-up, structure, physical properties, history, life forms, and the processes by which they form (speleogenesis) and change over time (speleomorphology). The term speleology is also sometimes applied to the recreational activity of exploring caves, but this is more properly known as caving, spelunking or potholing. Speleology and caving are often connected, as the physical skills required for in situ study are the same. Speleology is a cross-disciplinary field that combines the knowledge of chemistry, biology, geology, physics, meteorology and cartography to develop portraits of caves as complex, evolving systems.

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外骨骼

Animals; Spiders

在所有節肢動物中找到的堅硬外部覆蓋表面。

exuviae

Animals; Spiders

角質層擺脫在蛻皮的過程中的部件。

Animals; Spiders

類似爪的部分的每個 chelicera ;帶毒的 duet 打開其尖端。

挪威海深水

Weather; Meteorology

一個水群眾,-0 度的溫度。95 ° C,有助於北極底層水的形成。

挪威的電流

Weather; Meteorology

溫暖當前流動 northeastward 挪威沿岸。它是大西洋北當前的繼續,到北極海洋排放約 10 Sv (10 × 10 6 米 3 的 −1 ) 的 。因為其水域的亞熱帶的起源是它具有重大影響的歐洲北部氣候 ; 在挪威北部位於 70 ° N 埠是全年無冰。 ...

股骨

Animals; Spiders

從身體開始計,第三段的腿。

Animals; Spiders

任何在頗寬和葉狀的腹部的色素模式。

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