关于全部的公制度量衡系统。

All about... the metric system.

youdao

中国从什么时候起使用公制度量衡的？

Since when has China been using the metric system?

youdao

即使在那时，尽管，有很多关于世界一统语言的主张是激进的；但是，他们一直在追求梦想，标新立异，并就象那些曾要实现统一度量衡公制的人们一样。

Even then, though, many considered the notion of world language far out; a pursuit for dreamers, the eccentric and people who also wanted to convert to the metric system.

youdao