Trees also serve as sound Barriers when full grown and leafed out.
当树木长大枝叶茂盛时,它们可以起到隔声的作用.
Environmental impact abatement measures including noise barriers and extensive planting.
实施减轻环境影响的措施,包括建造隔声屏障和广泛植树.
The paper describes the new noise - insulation installation of electrical motor.
本文介绍一种新型电动机隔声罩.
Through experiments, the shear strength of concrete brick masonry has been researched in this paper.
本文通过试验研究和理论分析研究了混凝土空心砖墙体的隔声性能.
For the porous absorbent sample , we found its sound transmission loss don't accord to mass - controlled law.
一类是多孔吸声材料, 发现它的隔声量并不遵从质量作用定律.
The poor sound insulation performance is a main problem in inner wall board field.
轻质墙板的隔声性能差是目前墙体材料普遍存在的问题.
In this paper, the standing - wave pipe method is adopted to measure the composite's acoustic property.
本文研究了驻 波管 中隔声量测试的一种新方法———四传感器测试法.
High - grade passenger car abroad adopts floating floor with high performance of vibration absorption and sound insulation.
国外 高档 客车均采用浮筑地板,浮筑地板具有良好的减振、隔声性能.
The design idea and structures of the partial enclosures for bowl mill are introduced.
介绍了球磨机局部隔声罩的设计思路和装置结构.
Because of taking the sound - solid interaction into account, there are more value in transmission loss curve.
计算结果表明,由于隔声罩内声腔与结构振动的相互作用,考虑声固耦合后, 隔声罩透射损失曲线峰值较多.
Used for engine control room, It has heat insulation , sound insulation and heat preservation.
本产品适用于机舱集控室, 具有隔声 、 隔热和保温.
Doors of cubicles should go down to the ground and be sound proofed.
小格子的门应该从地面开始关严,而且应该隔声.
A new acoustic enclosure which can be assembled and unassembled convenientely is designed.
设计了一种新型装卸式隔声罩,它由新型蜂窝板结构和新型泡沫吸声材料组成.
The testing methods and evaluating parameters of soundproof property of textile were presented in this paper.
本文提出了纺织品隔声性能的测试方法和评价指标,探讨了织物结构参数对隔声性能的影响.
Machine operators shall be provided with protective apparatus including ear - muffs and anti - dust aspirators.
同时为机械操作人员配备隔声、 防尘 的劳动保护用品.