externalismn.形式主义；外在性；现象论externaladj.外来的；外部的；外面的；表面的n.外观；外部；外界事物external ion source外部离子源external gear motor外啮合齿轮马达external series gap外串联间隙external optic axis眼球外轴external conditions外部条件external -burning外部燃烧external harmonical内调的函数external difference外部差异external public law国外公法external indication外标记