ultrahigh speed是什么意思 ultrahigh speed怎么读
ultrahigh speed的用法和样例
- Emphasis is laid on the importance of the core of ultrahigh speed wheels, design requirement and material selection.
重点强调超高速磨削砂轮基体的重要性和设计要求以及材料的选择。 - Experts say the extra speed on the rails will increase passenger and cargo capacity significantly.
专家指出超高速铁轨将增加客流量及大大提高货运能力。
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