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front door, front end, front line, front man, front matter, front porch, front room, front row, front teeth, front yard,

相似单词

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脉冲编码调制, 脉冲发生器, 脉冲阀, 脉冲幅度调制, 脉冲功率放大, 脉冲计数器, 脉冲宽度, 脉冲宽度调制, 脉冲频率, 脉冲示波器,