正当理由
发表于 2025-3-21 19:03:28
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NIL
发表于 2025-3-21 20:39:59
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痛苦一下
发表于 2025-3-22 01:23:09
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严厉批评
发表于 2025-3-22 07:57:05
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embolus
发表于 2025-3-22 09:17:48
Roderick Chapman elastic solid in contact with a moving (rigid or elastic) obstacle is considered. The onset of instability and the transition to a dynamic regime is the underlying centre of interest of the discussion..Part 1 gives an overview of some classical and basic results concerning the stability analysis of
易改变
发表于 2025-3-22 13:12:05
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caldron
发表于 2025-3-22 18:16:16
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袭击
发表于 2025-3-23 00:00:31
Jorge Garrido,Shuai Zhao,Alan Burns,Andy Wellings what is superimposed often requires specialized knowledge of mechanics, physics, chemistry, and materials science, while quantitative prediction, even by an order of magnitude, remains a distant goal in many cases. While donning can often be reduced with lubricant, the size of this discount is near
textile
发表于 2025-3-23 01:25:05
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招惹
发表于 2025-3-23 09:10:00
Enrique Díaz,Mikel Fernández,Leonidas Kosmidis,Enrico Mezzetti,Carles Hernandez,Jaume Abella,Francisvibration in lead screws can be the cause of unacceptably high levels of audible noise as well as loss of operation accuracy and shortened life. Although lead screw drives have a long history and their mechanical design and manufacturing aspects are very well understood, the role of friction in thei