hydrographers 

  1. 名詞
hydrographer複數: 水道學者
水道測量家

    
                        
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例句

                

                    
    
                                                    
  1. 
                                Those who conduct hydrographic surveys are hydrographers .                            
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                                Its hydrographers survey the coastal seafloor , respond to maritime emergencies and search for underwater dangers to navigation.                            
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                                John and Samuel Thornton, Hydrographers to the East India Company compiled the first chart and Sailing Directions for the Indian Ocean in 1703.                            
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                                The flow, or discharge, in major streams is measured at gaging stations by hydrographers (hydrologic technicians) who visit each site about every 6 weeks.                            
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                                Because of its peculiarity on an important water channel, Ilhas de Pracel (Pracel Islands) drew much attention from navigators and hydrographers for several centuries.                            
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