long-playing

形容词 long-playing:

1. (used of records) playing at a slower speed and for a longer time than earlier records
   同义词：long-play

long-play.ing

adj.（形容词）
Relating to or being a phonograph record that turns at 33!/3 revolutions per minute.
慢转的，密纹的：关于或作为以每分钟33!/3转的速度播放的录音的