Mill formulated this as 'the Greatest Happiness Principle', which holds that 'actions are right in proportion as they tend to promote happiness, wrong as they tend to produce the reverse of happiness.
穆勒将倾向于促进幸福的行动是正确的，反之则是错误的，定义为“最大幸福原理”。
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This article mainly studies the phenomenon of width reducing of aluminium and aluminium alloy material which is rolled by 4-high non-reverse cold rolling mill with more forward and backward tension.