By measuring the receiver's noise performance of secondorder multiplex, various design schemes are compared and the correctness of the theoretical analysis is verified.
通过对二次群光接收机噪声性能的测量，比较了各种设计方案，验证了理论分析的正确性。
2
The contents of ultimate state design, second-order effect and seismic design in ACI318-99 are introduced.
简要介绍了ACI318-99关于承载能力极限状态设计、二阶效应、抗震设计等内容。
3
Design of output asymptotic tracking for a class of descriptor second-order dynamical systems based on output plus derivative feedback is considered.