There is no limit of quantity. You may post processing your photos but all your art works must keep the original information and nature of a photo.

可以经过适当处理来调整显示效果，但是必须保持摄影类作品的基本性质，须保留图片原始信息；

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And so now we have this quantity, p times v bar, and the limit of p goes to zero is equal to a constant times the temperature.

不仅仅对氢气或氮气适用，在p趋于0的极限下,它适用于任何气体。

麻省理工公开课 - 热力学与动力学课程节选

In theory, a discretionary central bank could limit the quantity of money and achieve long-run price stability by controlling the growth of nominal final demand.

FORBES: The Federal Reserve's Flawed Approach To Monetary Policy