实际上，早在20世纪前半页，间日疟就在远北地区被发现过，如俄罗斯的阿尔汉格尔斯克。
Indeed, in the first half of the 20th century it was found as far north as Archangel, in Russia.
相对较小的空间风暴似乎藏在一系列神秘小事故之后，比如，2000到2005年间俄罗斯西北部的阿尔汉格尔斯克省的铁路信号失灵。
Relatively minor space storms now appear to be behind a range of mysterious mishaps - railway signals malfunctioning in Archangel province in north-western Russia, for example, between 2000 and 2005.
相对较小的空间风暴似乎藏在一系列神秘小事故之后，比如，2000到2005年间俄罗斯西北部的阿尔汉格尔斯克省的铁路信号失灵。
Relatively minor space storms now appear to be behind a range of mysterious mishaps - railway signals malfunctioning in Archangel province in north-western Russia, for example, between 2000 and 2005.
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