对于摄影两个都不是最佳选择，因JPG比无损耗png小得多，也只是最低程序损失一点画质。
Neither are optimal options for photography, as JPG is much smaller than lossless PNG with only minimal loss of quality.
所有这些各种各样的损耗，尽管它们数量很大，却一点也不违反能量守恒定律。
All these various losses great as they are do not in any way contradict the law of conservation of energy.
一点不损耗就把热能转换成某种能量是不可能的。
It is impossible for heat to be converted into a certain kind of energy without something lost.
应用推荐