underframe
美 ['ʌndəˌfreɪm]英 ['ʌndəfreɪm]
- n.底座;底框;基础构架
- 网络底架;车体结构系由底架;底盘
复数:underframes
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Design and Application of Interchangeable Assembling Fixture for General-Purpose freight Car Underframe
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Manufacturing techniques for the underframe steel structure of a new type of coal hopper car for Australia
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