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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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折邊類型
Construction; Carpentry
應用土工布在拼接,顯示出明顯的土工織物和土工布縫拼接特別縫合線放置字母數位重要特色 (請參見 usstandard 號 四川省或其等效)。第一次兩個字母表示的類型的標記曼斯 ; 第三個和後續字母顯示特別糾結的直線度 ; 標記縫的數字顯示的行數。 ...
操作類型
Construction; Heavy & civil
在某些情況下的操作可能會增加 (減少了安全) 的橋一側的這座橋的總反應,但它減少了總回應 (增加安全性),另一方面。Takdapat 分隔,意味著行動都不開到 mengurangikeamanan 和其他安全 (如載入 T) 中添加的部分之一。可以採取蔓延 dimanabagian 行動以減少 menambahkeamanan 操作 (如,額外死載入) ...