来自海洋板块中碳元素混杂在如此之深的地幔中这一现象的发现使人们产生更大的疑问，到底有多少海洋板块和沉积物被带到深层地幔中。

The discovery that carbon from the ocean floor can be mixed so deep within the mantle raises the larger question of how much of the ocean floor and sediments are carried to the deep mantle.

youdao

来自海洋板块中碳元素混杂在如此之深的地幔中这一现象的发现使人们产生更大的疑问，到底有多少海洋板块和沉积物被带到深层地幔中。

The discovery that carbon from the ocean floor can be mixed so deep within the mantle raises the larger question of how much of the ocean floor and sediments are carried to the deep mantle.

youdao