HY/T 221-2017
Polar expedition element classification codes and diagram legends (English Version)

Standard No.

HY/T 221-2017

Language

Chinese, Available in English version

Release Date

2017

Published By

国家海洋局

Latest

HY/T 221-2017

HY/T 221-2017 history

• 2017 HY/T 221-2017 Polar expedition element classification codes and diagram legends