Decibel one phrase is applied to telephone engineering first in 1924 beginning of years in.

The most usual system is that of the decibel scale.

最常用的系统为分贝标度系统.

Specified as a decibel value over a frequency range.

以特定频率范围的分贝值表示.

Human's ear usually cannot stand sound over 80 decibel.

人类的耳朵通常忍受不了八十分贝以上的声音.

Toys that make noise can't exceed certain decibel limits.

有噪声的玩具不能超过规定的分贝限度.

The decibel is unit that expresses the ration of the magnitude of two electric voltage.

分贝是表示两个电压等级数量的单位.

In sound we use the decibel scale.

在声学中我们采用分贝标度.

Ear also becomes carried on the back a bit, talking sound grows decibel.

耳朵也变得有点背了, 说话的声音长分贝了.

The noise pollution reached a high decibel levellevel.

噪音污染达到了很高分贝.

A measure of sound intensity equivalent to one decibel at 1000 Hz.

一种声强的量度单位,其值等价于1000Hz1分贝.

The decibel level was mounting.

噪音在增强。

And it analyses the effect of decibel in the EMC test and electromagnetic design.

分析了分贝在电焊机电磁兼容测试和电磁兼容设计方面作用.

A Decibel is equal to a shell very.

一贝尔等于十分贝.

Scientists use a unit of measure called a decibel to measure the loudness of a sound.

科学家使用了一种计算单位称为分贝来衡量响度的声音.

A decrease or loss in a signal. Reduction of signal magnitude ( loss ) normally measured in decibels.

减小或 降低信号,信号减小或降低的多少通常用分贝来衡量.

A normal conversation reaches 55 decibels.

普通的谈话即可达55分贝.

The ordinate scale is linear in decibels.

纵坐标比例尺以分贝为单位是线性的.

As you all know, the normal noise threshold for private housing is 55 decibels.

正如你们知道的, 个人房子正常噪音为55分贝.

Forests to reduce noise pollution. 40-meter-wide forest belt noise can be reduced 10 to 15 decibels.

树林能减少噪音污染. 40米宽的林带可减弱噪音10—15分贝.

When subjected to 100 decibels or more, hearing damage can occur in just 15 minutes.

100分贝或100分贝以上的声音在15分钟内就会对听力造成损害.

The typical lawn mower makes about 90 decibels of noise.

典型的割草机发出的声响约为90分贝.