无论是单打还是双打比赛，网柱都应位于图a所示的双打边线之上。
The posts shall be placed on the doubles side lines as in Diagram a irrespective of whether singles or doubles is being played.
在单打中，球在触及接发球员的台区后，从其任意一条边线离开球台。
In singles leaves the receiver's half after touching it by either of its sidelines .
在单打中，球在触及接发球员的台区后，从其任意一条边线离开球台。
In singles leaves the receiver's half after touching it by either of its sidelines .
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