Patent gazettes and indexes, classifications and other literature in this field are also available.

在这里还可以获得专利公报和索引、分类和其他这个领域的文献。

youdao

Patent gazettes and indexes, classifications and other literature in this field are also available.

在这里还可以获得专利公报和索引、分类和其他这个领域的文献。

youdao