例句與造句

1. After it breaks the line-of-sight, it can achieve approximately 1.5dB of additional noise level reduction for each meter of barrier height " ".
2. :This page says : " A noise barrier can achieve a 5 dB noise level reduction, when it is tall enough to break the line-of-sight from the highway to the home or receiver.
3. Initial application of rubberized asphalt may provide 3 5 decibels ( dB ) reduction in tire-pavement source noise emissions; however, this translates to only 1 3 decibels ( dB ) in total traffic noise level reduction ( due to the other components of traffic noise ).
4. It's difficult to find noise level reduction in a sentence. 用noise level reduction造句挺難的