查询词典 noise-power-ratio

I know about having a foot or so of capped pipe going up from a line to trap air and cushion the noise of "on" and "off" clunking, but this has me stumped.

我知道有这样的上限烟斗或徒步上去，由线到空气过滤器减轻噪音"就"、"思进"clunking，但这我倒。

To make matters worse, the actual casing with all the little air vent holes amplifies the noise.

更糟糕的是，与所有的小空调通风孔实际套管的噪声放大。

As one of the best series doors and windows, it is leading the standard of airproof, noise proof and energy saving.

作为最高档的门窗系列之一，其气密性、隔音隔热性能等各项指标都名列前茅。

The to different program noise test result in article undertakes an analysis, the need that evaluated each program calls the result, sing to form model airscrew sound eliminated a method to build a base.

文中对不同方案的噪声试验结果进行分析，并评估了各方案的消唱效果，为形成模型螺旋桨唱音消除方法建立了基础。

Use this patent product to detect the airscrew precision that repair crosses rises, the vibration in locomotive process and noise are reduced greatly, propulsive efficiency has rise apparently.

利用该专利产品检测修复过的螺旋桨精度提高，在运转过程中的振动和噪声大大降低，推进效率有明显提高。

Noise will probably not hurt the airstream.

噪音基本上不会影响气流。

Aircraft noise level is one of the aircraft airworthiness certification requirements.

随着航空运输市场的急剧增长，世界各国越来越重视民机的噪声污染问题。

Begin with Queen"s "Alack, what noise is this?

开始于王后的这一台词："嗳哟！这是什么声音？"

When I came home last night, I make a lot of noise and alarmed my mom.

昨天晚上我回家的时候，我弄出很多噪音，吓到我妈了。

E.g. When I came home last night, I make a lot of noise and alarmed my mom.

昨天晚上我回家的时候，我弄出很多噪音，吓到我妈了。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。