在材料相同的前提下,压杆的柔度越小,压杆就越稳定。
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对于柔度介于λp与λs之间的中长杆,应用经验公式计算临界应力,以解决其稳定问题。
A. 对
B. 错
杆失稳的主要原因是临界力或临界应力,而不是外界干扰力
A. 对
B. 错
Most commonly, the term constitution refers to a set of rules and principles that define the nature and __________ of government.
A. extend
B. intent
C. extent
D. content
Most __________ seek to regulate the relationship between institutions of the state.
A. constitutions
B. institutions
C. institutes
D. constructions