proof of principle 原句是这样的：A proof-of-principle study showing that.

proof-of-principle是什么意思 proof of principle 原句是这样的：A proof-of-principle study showing that. proof of delivery是什么意思 proof-of-concept是什么意思 proof-of-concept是什么意思 proof of qualifications是什么意思 proof of identification是什么意思 the principle of Mudarabah principle of parsimony是什么意思 principle of measurement是什么意思 principle of indemnity是什么意思 principle of superposition是什么意思 principle of reduction是什么意思 proof of life 什么意思 the principle of the telescope principle of creative synthesis是什么意思 principle of all-inclusiveness是什么意思 principle of lust 什么风格