tick

Uniswap v3 divides the price range into discrete ticks that LPs use to define their positions.Uniswap v3 将价格区间划分为离散的刻度，流动性提供者利用这些刻度来定义他们的头寸。

Tighter tick spacing allows finer-grained liquidity positions but increases gas costs for swaps.更紧密的价格刻度允许更精细的流动性头寸，但会增加代币兑换的 Gas 费用。