1.incumbent,现任;英英释义currently holding a specified office:2.chair,英英释义a person who holds an office or a position of authority, such as one who presides over a meeting or administers a department of instruction at a college(专 职 头 衔、学 术 席 位),如牛dun剑qiao获授之卢ka斯shu学jiao授席位(Lu-ca-sian Chair of Mathematics)3.上问部分解答,此学术头衔与David Halperne...