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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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指示燈

Automotive; Auto parts

它警告說,驅動程式的東西會或出了錯。

水溫度儀

Automotive; Auto parts

它指示發動機冷卻液 (在水冷發動機) 的溫度。

寬頻

Consumer electronics; Television

一般來說,大頻容量電子設備 ;特別是,到訂閱伺服器的多個服務的一個封閉的大容量互動式電子分銷系統。

塊傾斜

Consumer electronics; Television

傾斜在寬頻廠取得的階梯的信號層級組的頻率。

圓錐體

Consumer electronics; Television

視訊訊號同步脈衝和爆裂的顏色之間的那部分。

黑色的水準

Consumer electronics; Television

黑色 (峰) (NTSC 為 7.5 憤怒中引用) 的視訊訊號中的亮度。

沖裁

Consumer electronics; Television

視訊訊號的幅度和時間安排將呈現的部分回溯為不可見。

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