定义 中文名称: 程序块谱 英文名称: program block spectrum 定义: 各级交变载荷及其出现频次组成一个载荷块,再按一定顺序排列的疲劳载荷谱。 应用学科: 航空科技(一级学科);飞行器结构及其设计与强度理论(二级学科)
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Experimental studies for crack growth of stiffened panels with multiple cracks were performed under both constant-amplitude load and program block spectrum load.
进行了恒幅谱载荷及程序块谱载荷下加筋板多裂纹的扩展试验研究。
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Verizon Wireless is also getting 700 MHz C block spectrum into the hands of 20 rural operators through its LTE in Rural America leasing program.
ENGADGET: Verizon wraps up 700MHz spectrum sales to three rural telecom firms
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