Fleming discovered penicillin by accident in 1928.
在1928年偶然发现了青霉素。
Fleming discovered penicillin by accident in 1928.
在1928年偶然发现了青霉素。
Fleming discovered penicillin early in the twentieth century.
在20世纪初首次发现了青霉素。
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·汉考克所有记载了在南极洲大陆上存在并且被地外壳大改变毁灭了一个未知先进文.
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.
摘要本文在前人研究基础上对桩前土体需要开挖桩提出了一种新计算方法,即似m法。
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