This X-Y type of mapping is such a narrow form of learning.

这种X - Y类映射是一种非常狭隘的学习方式。

youdao

A new type of Y-base heavy rare earth modificator was developed.

研制了一种钇基重稀土变质剂。

youdao

A new type of Y-base heavy rare earth modificator was developed.

研制了一种钇基重稀土变质剂。

youdao