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英《泰晤士报》1980年2月2日科学报告栏报道:在北海从事石油和气体设备接装的潜水员的死亡率较其他职业组为高,比矿工或深海捕鱼人要高得多。不足1,000人的工作队,平均每年要有6名潜水员死亡。高死亡率的一部份原因是由于其工作的不可避免的危险所致,但死亡中一半是由于完全不能解释的原因。伦敦医院医学院的医生对北海的研究提出了有说服力的证据,说明有些不能解释的死亡可能是因低温所致。
British “The Times” 2 February 1980 Science Bulletin column: Divers in the North Sea engaged in the installation of oil and gas equipment have a higher death rate than other occupational groups and far higher rates than miners or deep sea fishermen. A team of less than 1,000 people died on average each year about 6 divers. Part of the high death rate is due to the inevitable dangers of its work, but half of the deaths are due to unexplained causes. Doctors at the London Hospital Medical School have come up with convincing evidence of the North Sea study, explaining that some unexplained deaths may be due to hypothermia.