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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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中等膨脹泡沫

Fire safety; Prevention & protection

泡沫膨脹率從 20:1 到 200:1。

可擕式系統

Fire safety; Prevention & protection

泡沫生產設備、 材料、 軟管、 和等等,都用手運。

B 類泡沫

Fire safety; Prevention & protection

B 類火災上使用的泡沫。

泡沫發生器 — — 風機類型

Fire safety; Prevention & protection

泡沫的發電機、 固定或可移植的像在傳遞到螢幕通過該氣流開發的風扇或鼓風機上的噴霧泡沫溶液獲解除。

泡沫發生器 — — 吸引器類型

Fire safety; Prevention & protection

泡沫發電機、 固定或可移植的在泡沫溶液的急流吸出足夠量的空氣,然後氣流產生泡沫,螢幕上和通常產生泡沫的擴張比率不超過 ...

A 類泡沫

Fire safety; Prevention & protection

在火災中 A 類燃料上使用的泡沫。

體液

Fire safety; Prevention & protection

身體,包括但不是限於血液、 精液、 粘液、 糞便、 尿液、 陰道分泌物、 乳汁、 羊水、 腦脊液、 滑液,所產生的流體及心包液。

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