Since the 1973 registered patent to make bottles for carbonated drinks using PET, PET starts to become popular.

自1973年被专利注册于碳酸饮料瓶子应用以来，PET瓶开始流行。

youdao

Since the 1973 registered patent to make bottles for carbonated drinks using PET, PET starts to become popular.

自1973年被专利注册于碳酸饮料瓶子应用以来，PET瓶开始流行。

youdao