Fleming discovered penicillin by accident in 1928.
弗莱明1928年偶然发现青霉素。
Fleming discovered penicillin by accident in 1928.
弗莱明1928年偶然发现青霉素。
Fleming discovered penicillin early in the twentieth century.
弗莱明20世纪初首次发现青霉素。
Rand Flem-Ath and Graham Hancock all write that an unknown advanced civilization existed on the Antarctica continent and was destroyed by cataclysmic shifting of the crust of the Earth.
Ath和格雷厄姆·汉考克所有记载极洲大陆上存的并且被地外壳大改变毁灭的一个未文明.
In this paper, the two calculation methods including M method and finite linear element method (FLEM) of anti-slide pile are improved based on the researches of the predecessors.
摘要本文前人研究的基础上对桩前土体需要开挖的抗滑桩提出一种新的计算方法,即似m法。
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