“属国”怎么读？

其中管式离心机属国内先进机型, 靠近国际水平.One tube is a domestic advanced centrifuge model, close to international standards.公司拥有属国外首创,具有国际先进水平的新型运输包装箱--刚性中型散装容器.The company supplies pioneer and advanced new - type packing boxes of bulk ca...

“属国”的英语可以翻译为：vassal state，dependent state，dependency，tributary ...