以下为句子列表：
英文: 5 years acoustic transducer and speaker system design experience.
中文: 5年电声变换器及喇叭系统设计经验.
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英文: A pressure transducer was set up in this system to realize pressure control in main lines and adjustment of pump operating time; the distributors were designed to accomplish grease storage in fixed quantity and transport them into all lubricating points;
中文: 系统通过设置压力传感器实现主油路的压力控制和油泵工作时间的自动调节，通过配油器实现定量储油和将油脂输送至各润滑点，通过电子监控器设定加脂间隔时间，实现自动加脂与故障报警。
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英文: A transducer designed for a given range of input voltages that produces a larger range of output voltages.
中文: 扩展器在某一给定范围的输入电压内产生较大输出电压的转换器
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英文: Abstract: A digital automatic ultrasonic testing system developed for stovetubes of petrochemistry was introduced including the choice of the angle of a transducer and the grading of tubes.
中文: 文摘:介绍自行研制的透射式数字化炉管超声自动检测系统及检测结果，并对超声探头的入射角选取和炉管的分级进行了探讨。
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英文: Abstract: Experiments were made on a ultrasonic machining tool with work-piece adhered to ultrasonic transducer head,to machine micro-holes on hard and brittle materials such as soda glass and Si,to study the effects of tool materials，work-piece materials
中文: 文摘:通过以WEDG放电加工手段制作微细超声加工用工具，在采用工件加振方式的微细超声加工机上对碳酸玻璃、半导体硅等硬脆材料试件进行微孔加工的实验，来探讨在某一特定加工条件下工具材料、工件材料、工件的振幅、加工静载荷、磨料悬浮液浓度、工具长度及工件尺寸等重要因素对加工速度、工具损耗率的影响，为微细超声加工技术的实用化提供参考依据。
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