In the middle is a sound level meter.
在中东是一个声级计。
What is the maximum sound level of the toy is accepted?
你认为玩具所发出的声音最高是多少分贝?。
Risk for hearing damage depends on sound level and exposure time, "a statement said."
一项报告表示，听力损害的风险取决于音量和暴露时间。
"Risk for hearing damage depends on sound level and exposure time, " a statemant said.
一项报道指出：听力受损的程度取决于音量和收听时间。
Does that sound like an individual level goal or a goal for humanity itself?
那听起来像是个体层次的目标还是人类本身的目标？
Sound electrical control system enables the machine operation and safety of reach almost perfect level.
完善的电气控制系统使机器的操作和安全性达到了几乎完美的程度。
Regularities of pressure on surface with sound pressure level and frequency are also given.
并给出了模型表面压力随声压级及频率变化的规律。
Measurement and calculation of sound pressure level and sound power level.
声压级及声功率级的测量和计算。
The end result should be converted to sound power level.
最终结果均应折算至声功率级。
But through such sound teaching, the level of speech ability acquired is a questionable matter.
然而，经过这些语音教学，聋生实际获得了怎样的口语能力却是令人怀疑的。
Sound and light alarm function of level 2.
二级声光报警功能。
Sound and light alarm function of level 2.
二级声光报警功能。
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