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| 31. | digital dB meter |
| 数字电平表 |
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| 32. | decibel relative |
| 相对分贝 |
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| 33. | decibl with reference to one milliwatt |
| 毫瓦分贝 |
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| 34. | loud-song champions are the blue whales, whose earsplitting melodies can reach188 decibels underwater(162 db |
| 不过，声音最大的当属蓝灰色大须鲸了，它的声音震耳欲聋，在水底可达一百八十八分贝(气中为一百六十二分贝)比轰轰作响的喷射引擎声还要大过一百倍！ |
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| 35. | decibles relative to one watt |
| 瓦分贝 |
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| 36. | DB(Date Broadcasting) |
| 数据广播 |
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| 37. | adjusted decibels |
| 调整分贝 |
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| 38. | DB (Daily Bulletin) |
| 每日公报 |
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| 39. | DB already runs co-ordinated services with Lufthansa that allow travellers to transfer from a plane to |
| DB已经在和汉莎航空提供协同服务，比如说允许旅客可以只用一张票，从一班飞机转到一个列车。 |
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| 40. | three-decibel bandwidth |
| 三分贝频带宽度 |
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