Je was op zoek naar: 国家的统一性 (Chinees (Vereenvoudigd) - Engels)

"国家的统一性 "。
the “unity of the state”.

有关的国际原则是 "国家的统一性 "的原则。
the relevant international principle is that of the “unity of the state”.

2. 重申公约的统一性；
2. reaffirms the unified character of the convention;