On January 31, a musher named Seppala had to cross a frozen body of water called Norton Sound.
1月31日,一位名为塞帕拉的赶狗人必须穿越一个叫诺顿湾的冰冻水域。
366 - the Alamanni cross the frozen Rhine River in large Numbers, invading the Roman Empire.
366年的今天,阿拉曼人大量越过冰封的莱茵河,入侵罗马帝国。
While meeting the requirement of the minimum depth of the overlaying soil and the frozen depth, the cross-reverse fault pipeline is appropriate to be buried in shallow soil.
跨逆断层的埋地管线在满足管顶最小覆土深度、土壤冰冻深度以及抗浮要求等前提下,以浅埋为宜。
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