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磨机长度不会影响到磨矿时间，只影响到磨矿细度。
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方向公差包括有
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听力原文：Woman: We need to get some details done first. You need to fill in a standard application form. and then we can register you. Most companies will want computer experience, so you'd better put down the equipment and software you're familiar with. If you have any languages to offer, that would be a great help, and then we'll match you with some of the companies registered with us and you should get a phone call by the end of the week.
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如果一个反馈控制系统的动态性能是满意的，为了改善其稳态性能，而又不致影响其动态性能，可以采用的校正装置是____。（） A.

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