例句 /

The study of tarnish induced by Actinobacillus actinomycetemcomitans serotype b (Aay) on titanium and Ti-7 alloys

The study of tarnish induced by Actinobacillus actinomycetemcomitans serotype b (Aay) on titanium and Ti-7 alloys

Aay对钛及钛7合金表面失泽腐蚀的研究