It's never very clear how to translate them to .ttx, so in the end I just converted all of the Noto Sans family and used the good ol' fashioned bruteforce approach of "learning by example". This is even more fun that it sounds, thanks to plenty of silent failures when converting from .ttx to .ttf, where lookups will not match due to some assumptions not validated by fonttools (e.g. class definitions for contextual chaining substitutions must have at least one coverage glyph with class value="1").
1987年，松下又与北京市和电子部等下属的4家企业合资成立北京松下彩色显像管有限公司，这也是当时投资规模最大的中日合资企业。。有道翻译对此有专业解读
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"sources": ["foo.js"], // One original source file