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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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先進的通信技術和服務 (行為)
Wireless technologies; SSL certificates
先進的通信技術和服務 (行為) 是在歐洲的組織在歐洲的 3g 技術的發展。成功種族和專注于寬頻接入多個技術的行為。
鄰道洩漏比 (鄰)
Wireless technologies; SSL certificates
鄰通道洩漏比 (鄰) 是 wcdma 發射機性能的措施。,它定義在相鄰的射頻通道接收器篩選器後測的權力的傳輸功率的比率。這是什麼原名相鄰通道功率比。鄰是 3GPP WCDMA 標準中指定的。 ...
鄰道功率比 (諮委會)
Wireless technologies; SSL certificates
鄰道功率比 (諮委會) 是量的干擾或電源,相鄰的頻率通道中的測量。諮委會通常被定義為傳輸的頻率通道中的平均功率為鄰頻通道 (或偏移量) 中的平均功率的比率。是一關鍵測量 CDMA 發射器和它們的元件。,它描述了由於非線性的射頻元件引起的失真的數量。諮委會測量不是標準的 cdmaOne ...
鄰道選擇性 (ACS)
Wireless technologies; SSL certificates
鄰通道選擇性 (ACS) 是處理所需的信號,同時拒絕一個強烈的信號,在相鄰的頻率通道接收器能力的測量。ACS 定義為接收器篩選器衰減到接收機的篩選器衰減的相鄰通道頻率上分配的通道頻率上的比率。 ...