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railway control survey
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railway control survey
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工学
铁路控制测量
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railway control survey
铁路控制测量
为铁路工程的勘察设计、施工和运营管理等各项测量工作提供统一的参考框架、基准,控制测量误差积累,沿铁路线路建立平面、高程控制网的测量工作。
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aquaculture animal and plant pathogen detection
aquaculture animal embryo cryopreservation
aquaculture animal environmental stresses
aquaculture animal excretion rate
aquaculture animal ratio of oxygen to nitrogen
aquaculture area
aquaculture biological source for disease diagnosis and prevention and control technology
aquaculture biology bioenergetics
aquaculture biology nutrition metabolism disease
aquaculture carrying capacity
aquaculture costs
aquaculture data collecting system
aquaculture disease control
aquaculture diseases control
aquaculture ecology
aquaculture economy
aquaculture ecosystem
aquaculture ecosystem services
aquaculture enterprise
aquaculture environment
aquaculture environmental capacity
aquaculture environmental genomics
aquaculture environmental monitoring
aquaculture environment control
aquaculture genetics and breeding
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