明显
发表于 2025-3-21 16:47:19
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药物
发表于 2025-3-22 00:11:31
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accrete
发表于 2025-3-22 01:28:12
The Theory of Elasticity in the 19th Century,the definition of Young’s modulus. Studies were made on one-dimensional elements such as beams and bars, and two-dimensional, such as thin plates (see for instance the work of Marie Sophie Germain). These activities started the studies on three-dimensional elastic solids that led to the theory of el
奇思怪想
发表于 2025-3-22 08:13:55
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pacifist
发表于 2025-3-22 11:49:21
The Mathematicians of the Risorgimento,n mathematicians in the context of European research, in particular the German one. The internationalization of Italian mathematics is customarily associated with a trip taken in 1858 by some young mathematicians including Francesco Brioschi, Enrico Betti and Felice Casorati in Europe. In a few year
按时间顺序
发表于 2025-3-22 16:33:21
Solving Statically Indeterminate Systems, of the Kingdom of Sardinia, known after its promoter Gabrio Casati, which took force from 1860 in the kingdom and was then extended to all Italy. This decree reformed the whole education system and established the schools for engineering. Among these schools, the most important one, at least at the
飞行员
发表于 2025-3-22 19:27:54
Computations by Means of Drawings, in Germany (Berlin, Munich, Darmstadt, Dresden); in the Baltic regions (Riga); in the Austrian-Hungarian empire (Vienna, Prague, Gratz, Brunn); in the United States; in Denmark. The author that mainly developed its techniques was the German scholar Carl Culmann, who placed graphical statics besides
垄断
发表于 2025-3-22 23:45:26
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Hiatus
发表于 2025-3-23 03:35:06
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织物
发表于 2025-3-23 06:12:57
An Aristocratic Scholar,Piola introduced the components of the stress tensor simply as undetermined multipliers appearing in the application of the principle of virtual work for the study of equilibrium within the continuum. Piola’s approach is now widely used in modern treatises on continuum mechanics.