Zero placement method in the frequency domain is utilized to design robust multi-hump EI optimal arbitrary time-delay filter (OATF) by placing two or more filter zeros nearby the system poles.

采用频域的零点配置方法，通过在系统极点附近配置多个滤波器零点设计强鲁棒性的多峰极不灵敏（E I）最优随机时滞滤波器。

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The transient vibration is reduced further for safety problems by the input shaping technique which utilizes zero placement method in the frequency domain to design multi-hump robust input shapers.

输入整形技术采用频域的零点配置方法设计多峰鲁棒输入整形器用来进一步减小负载的瞬时振荡，保障安全作业；

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High-frequency horn can rotate so that the perspective of many of the cabinet can also be both horizontal vertical placement.

高频号角可以转动，使得多角度的箱体既能水平放置也可以垂直放置。

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"If the bell is accepted, the volume, placement, frequency and the inscription I would like the community to decide for themselves, " he said.

BBC: New bell plan near site of 'lost kingdom' off Aberdyfi

What if having marketers could see how their message is being received almost instantly, and could optimize message, placement, and frequency in real time to achieve an optimal mix?

FORBES: The New Rules Of Engagement