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11 godz. temu · A dive computer, personal decompression computer or decompression meter is a device used by an underwater diver to measure the elapsed time and depth during a dive and use this data to calculate and display an ascent profile which, according to the programmed decompression algorithm, will give a low risk of decompression sickness. A secondary function is to record the dive profile, warn the ...
11 godz. temu · Outline of underwater diving. The following outline is provided as an overview of and topical guide to underwater diving: Surface-supplied divers riding a stage to the underwater workplace. Underwater diving – as a human activity, is the practice of descending below the water's surface to interact with the environment.
11 godz. temu · The First Opium War (Chinese: 第一次鴉片戰爭; pinyin: Dìyīcì yāpiàn zhànzhēng), also known as the Anglo-Chinese War, was a series of military engagements fought between the British Empire and the Qing dynasty of China between 1839 and 1842. The immediate issue was the Chinese enforcement of their ban on the opium trade by seizing private opium stocks from merchants at Canton and ...
