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<div class="O" vshape="_x0000_s1026"><div style="TEXT-ALIGN: justify; mso-line-spacing: "130 20 0"; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><nobr><span style="FONT-SIZE: 44pt; FONT-FAMILY: 楷体_GB2312; mso-ascii-font-family: 楷体_GB2312; mso-hansi-font-family: Arial; mso-fareast-font-family: 楷体_GB2312;"><b>脉冲噪声: </b></span></nobr></div><div style="mso-line-spacing: "130 20 0"; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span lang="EN-US" style="FONT-SIZE: 40pt; FONT-FAMILY: 楷体_GB2312; mso-ascii-font-family: 楷体_GB2312; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN; mso-fareast-font-family: 楷体_GB2312;"><b><span style="mso-spacerun: yes;"> </span>指声音持续时间小于0.5s,间隔时</b></span><span style="FONT-SIZE: 40pt; FONT-FAMILY: 楷体_GB2312; mso-ascii-font-family: 楷体_GB2312; mso-hansi-font-family: Arial; mso-fareast-font-family: 楷体_GB2312;"><b>间大于1s, 声压有效值变化大于40dB</b></span><span style="FONT-SIZE: 40pt; FONT-FAMILY: 楷体_GB2312; mso-ascii-font-family: 楷体_GB2312; mso-hansi-font-family: Arial; mso-fareast-font-family: 楷体_GB2312;"><b>的噪声 </b></span></div><div style="mso-line-spacing: "100 50 0"; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"></div></div> |
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