波形已知
known disturbance waveform
对已知危险采取跟进行动的原则
react-to-known-hazard principle
过已知点的霍夫变换
Hough Transform passing a known point
结合已知的水文地质资料
in combination with available data
无已知控制点
without Known Coordinated Points
已知的开支承担
known spending commitment
已知的确定的已知的不确定因素
Known， Known-unknown， Unknown-unknown
Known
known-unknown
Unknown-unknown