Contents of en.po translation file, 6/13/2023
# name: unit product
msgid "Product_Electronics__name"
msgstr "Electronics"
# name: unit product
msgid "Product_Electronics2__name"
msgstr "Electronics II"
# name: unit product
msgid "Product_Electronics3__name"
msgstr "Electronics III"
This appears to be 'By Design'.
It seems all buildings that have multiple levels do this.
As for "Silicon & electronics II", The 'II' should be removed.
I also prefer normal numbers such as 1,2,3. Most of us are not Roman. :)
For the Electronics, it should be:
Electronics 1, Electronics 2, and Electronics 3.