Nghĩa của từ db above a reference noise (dbrn) bằng Tiếng Việt

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Đặt câu có từ "db above a reference noise dbrn"

Dưới đây là những mẫu câu có chứa từ "db above a reference noise dbrn", trong bộ từ điển Từ điển Anh - Việt. Chúng ta có thể tham khảo những mẫu câu này để đặt câu trong tình huống cần đặt câu với từ db above a reference noise dbrn, hoặc tham khảo ngữ cảnh sử dụng từ db above a reference noise dbrn trong bộ từ điển Từ điển Anh - Việt

1. Noise level shall be measured in dB with A-weighting, expressed as dB (A

2. Noise level shall be measured in dB with A-weighting, expressed as dB (A).

3. Difference between ambient noise and noise to be measured dB(A)

4. Noise level LA shall be measured in dB with A-weighting, expressed as dB(A

5. Noise level LA shall be measured in dB with A-weighting, expressed as dB(A).

6. Unit of measurement Noise level shall be measured in dB with A-weighting, expressed as dB (A).

7. Airborne acoustical noise emissions (1) (dB(A) re 1 pW)

8. airborne acoustical noise emissions : 44 dB(A) re 1 pW;

9. airborne acoustical noise emissions : 42 dB(A) re 1 pW;

10. Audiometers are calibrated so that a 10-dB masking noise will block a 10-dB pure-tone signal

11. The noise figure in this case is 20 dB.

Biên độ độ lơi trong bộ khuếch đại này là 19 dB.

12. Difference between ambient noise and sound to be measured dB(A)

13. The noise level with 120 dB(A) lay above the allowed border limit and therefore permitted a certain evaluation of the risk of the hearing damage.

14. The background noise (including any wind noise) shall be at least # dB below the A-weighted noise pressure level produced by the vehicle under test

15. Airborne noise from the appliance, counted as sound power, shall not exceed # dB(A

16. The background noise (including any wind noise) shall be at least 10 dB below the A-weighted noise pressure level produced by the vehicle under test.

17. Airborne noise from the appliance, counted as sound power, shall not exceed # dB(A) (re lpW

18. (m) airborne acoustical noise emissions expressed in dB(A) re1 pW, rounded to the nearest integer;

19. Airborne noise from the appliance, counted as sound power, shall not exceed # dB(A) (re # pW

20. Monolithic integrated analog circuit for the reduction of audio noise by 14 dB, contained in a

21. airborne acoustical noise emissions during washing/spinning (1 400 rpm) : 54/71 dB(A) re 1 pW;

22. airborne acoustical noise emissions expressed in dB(A) re 1 pW and rounded to the nearest integer.

23. Airborne noise from the appliance, counted as sound power, shall not exceed 42 dB(A) (re lpW).

24. System for producing a substantially noise-free signal of an acoustic sound, and for producing a sound, the sound including a desired sound and an anti-phase noise sound, the anti-phase noise sound being in anti-phase relative to a noise, the system including an acoustoelectric transducer, a reference-acoustoelectric transducer and an audio controller coupled with the reference-acoustoelectric transducer and the acoustoelectric transducer, wherein the acoustoelectric transducer produces a noise bearing sound signal by detecting the acoustic sound and the noise, wherein the reference-acoustoelectric transducer produces the reference noise signal by detecting the noise in a noisy environment and wherein the audio controller produces the substantially noise-free signal, according to the reference noise signal and the noise bearing sound signal.

25. Some microphone manufacturers state the noise level using ITU-R 468 noise weighting, which more accurately represents the way we hear noise, but gives a figure some 11–14 dB higher.