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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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泡沫
Fire safety; Prevention & protection
這一標準的範圍內消防泡沫是密度的穩定聚集的展品覆蓋水準表面的韌性的水和油較低的小氣泡。空氣泡沫是混制空氣到水的解決方案,包含一種泡沫精礦,設計適當的設備的方法。它在燃燒的液體表面自由流動並形成強硬,空氣,不包括,連續的毯子,密封空氣,揮發性可燃蒸氣從訪問 。抗拒風和草案或熱和火焰攻擊的中斷,並且能夠蓋印章機械破裂的情況下。消防泡沫較長時間內保留這些屬性。 ...
大底調度程式
Professional careers; Occupational titles
專業人員將從生產控制書到工作指示存儲 bin 位置鞋底套管操作中使用的車票上複製的代碼。* 可準備大底請購單根據庫存記錄。