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| 71. | A traditional deterrent has been a series of high pitched squeals emitted from loudspeakers. |
| 传统威吓方法是由扩音器内发出一连串的高分贝尖锐声音。 |
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| 72. | In terms of loudness, bats emit calls as low as 50 dB and as high as 120 dB, which is louder than a smoke detector 10 centimeters from your ear. |
| 关于音量，蝙蝠发出的叫声低至50分贝，高达120分贝，这比距离你耳朵10厘米处的烟雾探测器所发出的声音还要响。 |
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| 73. | Selection of decibel threshold for Detecting Doppler Embolic signals |
| 经颅多普勒超声微栓子检测技术中分贝阈值的选择 |
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| 74. | You've met many, many people. |
| 遇到过许多许多的人。 |
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| -- 来源 -- 时尚英语小品-风云人物 - Samaranch, the Captain of Olympics |
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| 75. | At 95 decibels reaction times to tasks that involve decision making plummeted by 20%. |
| 噪音达到95分贝时，作出判断的反应次数锐减了20%。 |
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| 76. | Provides a6 dB-per-octave rolloff filter at115 Hz. |
| 提供一个115赫兹时每八度6分贝的低频上移滤波器。 |
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| 77. | The ratio of output power from an amplifier system, to the input power.Gain is normally measured in decibels. |
| 放大系统的输出功率与输入功率之比，增益通常用分贝表示。 |
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| 78. | The threshold for pain,tissue damage,and potential hearing loss in humans is 120 decibels. |
| 120分贝是人类感到痛苦、组织受损、造成潜在的听力丧失的下限。 |
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| 79. | People walking down the street with earphones, listening to music that they enjoy, are receiving a lot of decibels of sound, but they are probably happy hearing sounds which they control. |
| 有人在街上边走边听耳机里的悦耳的音乐，他们会听到许多分贝的声音，但是，他们乐意听他们能够控制的声音。 |
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| -- 来源 -- 中级百科部分 - P_baikeduwu_kejiqita |
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| 80. | Some fish can produce sounds almost twice as loud as your speaking voice! |
| 蟾鱼发出的声音高达100多分贝??几乎是你讲话声音的两倍！ |
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| -- 来源 -- 高中英语(高一下学期适用) 3 - Unit 7 The Sea Lesson 3 The Sea World |
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