介绍了铂钯提取工艺和生产过程。

The Pt Pd extractive technique and production process are dealt with in this paper.

youdao

工场间的墙壁全是一片暗灰钯。

The walls of the workrooms were a dull gray color.

youdao

工场间的墙壁全是一片暗灰钯。

The walls of the workrooms were a dull gray color.

youdao