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| 11. | Note: In the DB mode, outline of thumbnails will turn red color, while that of thumbnails is blue color |
| 注意:在DB模式中,边框显示红色,而在子目录中,边框显示蓝色. |
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| 12. | middle membrane.Blocking noise level of 30 decibels or above.will be entirely up to the road block to 80 dB |
| 隔音性能好：夹层玻璃使用较厚的中间膜时，阻隔噪音达30分贝以上，完全可将马路上高达80分贝的噪音阻隔至50分贝以下安静室内的程度。 |
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| 13. | " Basic environmental testing procedures for electric and electronic products--Test Db: Damp heat, cyclic |
| GB/T2423.4-1993电工电子产品基本环境试验规程试验Db:交变湿热试验方法 |
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| 14. | The radio interference limit(70 dB(μV/cm)),ground electric field(13 kV/m) and audibility noise(48 dB( |
| 模拟母线典型的架设方式并测量了地面1 m处的电场强度和可听噪声后得出母线无线电干扰为70 dB,地面电场为13kV/m,电晕噪声约48 dB的电磁环境水平,此水平不影响变电站外的环境。 |
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| 15. | In terms of loudness, bats emit calls as low as 50 dB and as high as 120 dB, which is louder than a smoke |
| 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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| 16. | The rolloff is usually expressed as attenuation per unit interval, such as6 dB per octave. |
| 衰减截止频率通常被表示为单位音程的衰减，比如每一个八度降低6分贝。 |
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| 17. | In DL/1, a method of identifying specific data within a DB/DC data base. |
| 在数据语言DL/1中,标识DB/DC数据库内指定数据的一种方法。 |
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| 18. | They wanted DB to retain its turn-up-and-pay style of rail travel, which German passengers cherish. |
| 他们要DB保持它的发动就要付钱的铁路旅行方式，这个是德国旅客所珍爱的。 |
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| 19. | Sound preconditioning(87 dB SPL white noise 5 h/d for 10 d) brings no harm to the hearing of guinea-pigs |
| 结论:声预处理(87 dB白噪声10 d,每天5 h)不会造成豚鼠听力损失,并可以减轻随后强噪声(110 dB白噪声5 h)引起的听力损失; |
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| 20. | a unit of perceived loudness equal to the loudness of a 1000-hertz tone at 40 dB above threshold. |
| 响度单位等于赫的纯音声压级在闻阈上分贝时的响度。 |
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