光束液位偵檢器 liquid level detector: 液面檢測器; 液位檢測器; 液位檢查器portable liquid level detector: 便攜式液位檢測器float-actuated liquid level detector: 浮子式液位檢測器light beam level wheel gauge: 光束水準車輪定位; 光束水準車輪儀liquid detector: 液體檢波器下載手機詞典可隨時隨地查詞查翻譯