单词	ceilometer
释义	ceilometer noun ceil·​om·​e·​ter sē-ˈlä-mə-tər  : a photoelectric instrument for determining by triangulation the height of the cloud ceiling above the earth Word History Etymology ceiling + -o- + -meter First Known Use 1943, in the meaning defined above
随便看	towing towing basin towing bridle towing light towing net towing post towing sleeve towing spar towing tank towing timber towings towline towlines towman towmen towmond towmonds towmonts town town ball town car town cars town centre town clerk town crier

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