- 重点词汇
- 相关例句
Typically, a control valve body has a close resonancefrequencyto the pipe system.
通常, 控制阀阀体的共振频率和管道系统比较接近.
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Control Valve categories: regulation of the flow pipe and pressure medium.
调节阀类: 调节管路中介质的流量和压力.
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I grabbed the little boy by the scruff and bundled him out of the classroom.
我抓住那小男孩的颈背,把他撵出了教室.
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几乎是糊里糊涂地, 我从小高架床上跳了下来, 光着身子,甚至都没想到穿上衣服, 面向挡风玻璃站着.
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With new health threat on the rise, James Madison looks at epidemics throughout history.
对人类健康造成威胁的因素在不断增加, 詹姆斯?麦迪逊回顾了历史上的传染病病例.
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