主要介绍了其改进重点、关键部分及其特点、整机的技术性能指标、实际应用效果和推广应用建议等。
The main modification, key parts and their peculiarity, the technical specification of the machine, application results and popularization suggestion were introduced.
天线反射面的表面精度是主要技术性能指标之一，它直接影响着天线的电性能。
The surface precision is one of the main technique standards for reflector antennas, which influences the electric performance of antennas directly.
本文主要介绍了一种心室晚电位前置放大电路，给出了测试情况和达到的技术性能指标，实验结果表明了该放大电路的可行性和可靠性。
This paper introduces the preamplifier of ventricular late potentials, and give out testing instance and performance parameters, experiment results show that this preamplifier is viable and reliable.
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