The sources of sediments mainly are terrigenous sediments,biogenic sediments and volcanic sediments in the suvey area and they are mostly from the Kamchatka Peninsula in the east of USSR and Aleutian Islands.是什么意思_The sources of sediments mainly are terrigenous sediments,biogenic sediments and volcanic sediments in the suvey area and they are mostly from the Kamchatka Peninsula in the east of USSR and Aleutian Islands.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句