... long range radar 远程雷达 long term drift 长期漂移 long term reliability 长期使用的可靠性 ...
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报告了自1990年以来通过与量子化霍尔电阻比对考核的国家直流电阻(实物)基准的长期漂移率及偏差。
The drifts and deviations of National DC (artifact) Resistance Standards by comparison with Quantum Hall Resistance (QHR) since 1990 is reported.
经研究，发现地极还存在长期的漂移和周期约30年的长周期摆动。
The study found that there are still a long-term polar drift and cycle of about 30 years of long-period oscillation.
应用上面长期光束扩展半径表达式和马尔可夫近似获得了光束漂移表达式。
The expression of optical-beam wander is obtained from above long-term optical-beam spreading formula and the MA.
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