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a basic generalization that is accepted as true and that can be used as a basis for reasoning or conduct
"their principles of composition characterized all their works"
同义词：
rule
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a rule or standard especially of good behavior
"a man of principle"; "he will not violate his principles"
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a basic truth or law or assumption
"the principles of democracy"
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a rule or law concerning a natural phenomenon or the function of a complex system
"the principle of the conservation of mass"; "the principle of jet propulsion"
同义词：
rule
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rule of personal conduct
同义词：
precept
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(law) an explanation of the fundamental reasons (especially an explanation of the working of some device in terms of laws of nature)
"the principles of internal-combustion engines"
同义词：
rationale