A direct proof of the theorem is given in this paper.
本文给出了该定理的一个直接证明。
Direct proof of the mechanism of adhesion is quite elusive.
直接证明粘结的机理是十分困难的。
Direct proof of the mechanis. of adhesion is. quite elusive.
直接证明粘结的机理是十分困难的。
The analysis method is more simple, direct and concrete than the theoretical proof.
这一分析方法较之理论推导简单、直观和具体。
The analysis method is more simple, direct and concrete than the theoretical proof.
这一分析方法较之理论推导简单、直观和具体。
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