principal moment of inertia
[英汉机械工程大词典]
principal moment of inertia诌性矩
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[力学英汉词典] principal moment of inertia
[英汉数学大词典] principal moment of inertia
[机械英汉词典] principal moment of inertia
[机械工程英汉词典] principal moment of inertia
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[物理学英汉词典] principal moment of inertia