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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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速度

Aerospace; Space flight

其規模是一個機構的速度,其方向為身體的運動方向向量數量。

紫外線 (UV)

Aerospace; Space flight

字面意思是"上面紫"輻射。在附近的 100 納米波長的電磁波輻射。

行波管放大器 (TWTA)

Aerospace; Space flight

航太器的電訊子系統,放大的下行 (行波管的單位相同) 的最後階段中下行鏈路功率放大器。

上行鏈路

Aerospace; Space flight

信號發送到飛船。

包資料

Semiconductors; Semiconductor quality

驗證和裝運給客戶為舉辦期間的所有各種資料篩選了很多的過程中生成的操作。

列席的股票

Financial services; General Finance

無權表決的法團的各項決議或選舉持有人的安全。

懸垂債券

Financial services; General Finance

發行可轉換債券的投資者不會轉換為普通股因為股票已不欣賞價值。

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