safety timer 中文意思是什麼
safety timer
解釋
安全定時器-
A five function computer timer, includes speed, distance, time, calories and cant angle degrees. safety key. the key switch is a small clip attached to a sensing cable
五視窗豪華電腦顯示器,可顯示a跑步板傾斜角度數值b時間c速度d距離e卡路里的消耗量
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