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surface sediments
2
北冰洋西部
2
表层沉积物
2
226Ra
1
228Ra
1
Bering Strait
1
Western Arctic Ocean
1
biogenic and terrigenous coarse fractions
1
biogenic components
1
sedimentary environment
1
surface productivity
1
surface productivity and ice-rafted detritus
1
water mass
1
water masses
1
western Arctic Ocean
1
水团
1
水团来源
1
沉积环境
1
生源与陆源粗组分
1
生源组分
1
白令海峡
1
表层生产力
1
表层生产力与冰筏碎屑
1
镭-226
1
镭-228
1
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