id: int | None = Field(default=None, primary_key=True)
Some turntables have semi-automatic operation. Maybe they can’t place the needle for you, but they do have an automatic stop when a side of a record is complete. This auto stop, which sometimes comes with an on/off switch, can prevent unnecessary wear on your stylus and vinyl. Plus, many turntables with automatic operation allow you to take control if you need to drop the stylus in a certain place (that’s not the beginning of the record) or if you have a die-cut vinyl (like the It's the Great Pumpkin, Charlie Brown soundtrack).,更多细节参见体育直播
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