ventilation noise的意思|示意

The mechanisms of the noise generated in mine ventilation system, mainly in ventilators and electric motors, are analyzed in detail main measures and ways of noise controlling are put forward.

就矿井通风系统(主要针对通风机、电动机)噪声产生的机理进行了较深入的研究分析，并提出其噪声控制的主要措施与途径。

What direction DO the winDOws face? Is there enough light and ventilation? What about noise from the street? Are the winDOws DOuble glazed?

窗户的朝向？采光和通风够了吗？来自街上的噪音有多少？是否双层玻璃窗。

The new construction in detail on the frame structure, stator core, winding, rotor assembly, ventilation system, bearings, noise damping etc. is also noted.

文中还进一步阐述了机座结构、定子铁芯、绕组、转子装配、通风系统、轴承、噪声阻尼等新的结构细节。