alcoholism
发表于 2025-3-25 04:30:09
a spacecraft characterized as a rigid body having attached a flexible appendage idealized as a collection of elastically interconnected particles. The appendage is permitted in the paper to be configured in a general fashion, but the special case of the planar appendage shown in Fig. 16 is adopted i
esculent
发表于 2025-3-25 08:18:27
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neolith
发表于 2025-3-25 14:21:23
y number of rigid bodies. It has a topological tree-structure. Its hinges of one, two or three degrees of freedom of relative rotational motion contain at least one point which is a fixed point on either one of the two bodies connected by the respective hinge. This point was called the hinge point.
拒绝
发表于 2025-3-25 17:54:46
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外科医生
发表于 2025-3-25 23:59:31
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Gourmet
发表于 2025-3-26 01:04:15
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勤劳
发表于 2025-3-26 07:08:46
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BAN
发表于 2025-3-26 10:21:40
The influence of spin on mode shapes and frequencies,he only significant difference in systems 2a), 2b), and 2c) is in the steady-state load in the spring restraining the motion of P within the tube; in case 2a) this spring is in tension, in case 2b) it is unloaded, and in case 2c) it is in compression.
难理解
发表于 2025-3-26 13:25:08
Applications, important relationships. Due to an unfortunate choice of variables, however, he did not arrive at a convenient form for the equations of motion. He considered the problem: Given the motion of the human body as a function of time, i.e. the angular positions, velocities and accelerations of its parts
键琴
发表于 2025-3-26 17:36:46
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