casting vote

n.

决定票，赞成与反对同票数时主席所投的票；

复数：casting votes

Casting votes in the auditorium
The Casting Vote
Who should cast the casting vote? Using sequential voting to amalgamate information
Casting Votes: The National Campaign Context and State Turnout, 1920—2008
Casting Votes
Casting Votes of the Vice-Presidents, 1789–1915
System And Method For Identifying And Exporting Cast Vote Record Data
Casting votes digitally: examining the Latvian national position on Internet voting
Failure of Creditor Class to Cast Vote on Chapter 11 Plan Does Not Equate to Acceptance
Casting Votes on the Internet: Switzerland and the Future of Elections