Clay stabilizer KS-1, developed for water sensitive oil reservoirs, is organic oligomeric polyammonium salts of medium molar mass in range 3000—5000.

针对低渗水敏性油藏研发的黏土稳定剂KS-1，为齐聚物型有机聚季铵盐，相对分子质量适中，为3000~5000。

youdao

Well, there's the S-1 prospectus followed by the Def-14a proxy statements, 10-q quarterly reports, 10-k annual reports, 8-ks, 4s, 3s, it's a nightmare for everyone... except the lawyers.

当然，还有the s - 1 prospectus、the Def - 14 a proxy statements 10 - q quarterly reports 10 - K annual reports 8 - Ks 4s 3s除了律师，这些简直就是每个人的噩梦！

youdao