It introduced that what is standardized acceptance testingofcharacteristic indicator and how to determine the target value, and established a formula for calculating the rate of surface segregation.
介绍离析特征指标验收标准化以及如何确定检测指标目标值，并建立了表面离析率的计算公式。
2
The former realizes steady transmission of signal by testing and analysing the carrier channel's frequency characteristic .
前者是通过对载波信道的频率特性时变性测试、分析，实现信号平稳传输。
3
In this paper, the signal collection system and analytic system of transmission characteristicof infrasound are designed, which are used for testing the performance of infrasound.