道上车辆船舶和设备上用接收机保护的无线电干扰特性。限值和测量方法。有源天线规范。
Radio disturbance characteristics for the protection of receivers used on board vehicles, boats, and on devices - limits and methods of measurement - specifications for active antennas.
道上车辆船舶和设备上用接收机保护的无线电干扰特性。限值和测量方法。有源天线规范。
Radio disturbance characteristics for the protection of receivers used on board vehicles, boats, and on devices - limits and methods of measurement - specification s for active antennas.
用于测量人眼像差和视网膜成像质量的各种技术已经问世，然而至今还没有形成标准规范的眼像差测量方法。
Although there are many measurements methods of the eye′s aberration, the standard method of human eye aberration has not been published.
用于测量人眼像差和视网膜成像质量的各种技术已经问世，然而至今还没有形成标准规范的眼像差测量方法。
Although there are many measurements methods of the eye′s aberration, the standard method of human eye aberration has not been published.
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