标准摘要
[中文适用范围]： 本部分紧密遵循其他两个部分中描述的方法，但允许使用替代的泵安装和驱动配置，这些配置在电波暗室中实施起来更简单、更便宜。 也可用于测试电机。 [外文原描述]： This part closely follows the methods described in the two other parts, but allows the use of alternative pump mounting and drive configurations which are simpler and cheaper to implement in an anechoic chamber. May also be applied to test motors.
英文名称Hydraulic fluid power — Test code for determination of airborne noise levels — Part 3: Pumps — Method using a parallelepiped microphone array