[計] 操作員跟蹤系統(tǒng) tracking operator: 跟蹤操縱手range tracking operator: 距離跟蹤員range-tracking operator: 距離跟蹤員tracking system: 跟蹤系統(tǒng); 追蹤系tracking system (s): 跟蹤系統(tǒng)下載手機詞典可隨時隨地查詞查翻譯