论文部分内容阅读
据国外媒体报道,英国伦敦的科学博物馆近期举办了别开生面的展览,庆祝塑料诞生100周年。其实,塑料从诞生到现在并非整整100年。天然树脂的
According to foreign media reports, the British Science Museum in London recently held a unique exhibition to celebrate the 100th anniversary of the birth of plastic. In fact, the plastic from the birth to the present is not a full 100 years. Natural resin