您要查找的是不是：
- noise insulator factor 隔音系数
- noise insulation factor 隔音度,隔音系数
- This paper mainly presents us the controlling method for noise of some type roots blower and the design for noise insulator. 介绍了某型罗茨鼓风机的噪声控制方法及隔声罩设计,分析了风机的危害,说明了当前隔声罩的研究现状。
- In the environment with lower noise level, the earplug will decrease its sound insulation factor accordingly to ensure the useful voice can be heard. 在低声级环境中，其隔音量又足够低，可以保证能接收到一些有用的声信号。
- Silent operation A low noise insulated diesel engine and reduce noise levels to the lowest in the industry today. 安静的操作低噪声隔音柴油机发动机,降噪音降低到现代工业噪音的最低程度。
- If the thickening layer ceramic choose concrete, it than ordinary concrete results better noise insulation. 如果在加厚层中选用陶粒混凝土,那就比普通混凝土保温隔音效果更好。
- A loud noise from the street diverted my attention. 街上一阵喧闹声转移了我的注意力。
- Disappearing in just 20 seconds, the Z4's new roof promises better temperature and noise insulation than its canvas predecessor. It also boasts increased visibility and aesthetics. 消失只需20秒，Z4的新承诺，更好的屋顶温度和隔音比油画的前任。此外，它还配备增加知名度和美学。
- The company mainly produces various types of ancillary sales closed, opening plastic foam sheet, foam rubber and plastics, such as for air-conditioning, vehicle noise insulation materials. 公司主要生产销售配套各种类型闭，开孔塑料发泡板材，橡塑发泡等用于空调，汽车的隔音保温材料。
- The noise awoke her from her revery. 这声音把我她从沉思中惊醒。
- That noise is driving me frantic. 那种噪音真要把我弄疯了。
- That's a factor which we must not neglect. 这是我们不应忽视的一个因素。
- The thick walls deadened the noise from the street. 这道厚墙隔绝了街上的噪音。
- I factor ed my uncle's estate for three years. 我代管我叔父的财产已有三年了。
- A noise abatement notice is served on the club. 向俱乐部发停止大声喧哗的通知。
- The noise of traffic grows louder and louder. 交通的噪音变得愈来愈大。
- The noise struck terror into their hearts. 那声音使他们心里产生恐惧。
- He turned around as he heard a noise behind him. 他听到身后有响声，便转过身来。
- The boy jumped up in surprise at the sudden noise. 突如其来的响声吓得这个男孩跳了起来。
- His experience in social work is a plus factor. 他在社会福利工作方面的经验是一个有利因素。
