永凍土中的 的英文怎麼說
中文拼音 [yǒngdòngtǔzhōngde]
永凍土中的
英文
intrapermafrost-
The polar ice caps are made of frozen water and carbon dioxide, and water may be frozen in the ground as permafrost
極地冰帽是由固態水和二氧化碳組成的,水也有可能存在於永久凍土之中。In alaska, salmon populations are faltering as melting permafrost pours mud into rivers, burying the gravel the fish need for spawning
在阿拉斯加, ?魚群的數量正在逐漸減少,因為永久凍土層融化帶入大量的泥土到河中,覆蓋了?魚產卵所需的碎石。Engineers designed bridges to span the most treacherous area of permafrost and sank naturally cooled piping into the ground to keep the track bed frozen year - round, reducing instability
中國鐵路建設者們在永凍土地段設計了橋梁,堅固的水泥橋墩深深地埋在永凍土層里,克服了路基不穩定的難題。
分享友人