direction-finder

n radio device that shows the direction from which radio signals are coming 无线电测向仪.

diplomatic corps, diplomatic immunity, diplomatic service, diplomatically, diplomatist, dipper, dipsomania, dipsomaniac, diptych, dire, direct, direct access, direct action, direct current, direct debit, direct object, direct speech, direct tax, directed, direction, directional, directive, directly, directness, director, director-general, directorate, directorship, directory, dirge, dirigible, dirk, dirndl, dirt, dirt cheap, dirt farmer, dirt road, dirt-track, dirtily, dirty,