top checker 中文意思是什麼
top checker
解釋
頂部磚格-
As the grocery items moves along the conveyor belt, the checker passes each item over a glass plate in the counter top, making sure that the upc symbols can be read by the laser beam under the glass
食品雜貨經傳送帶傳到收款員跟前，收款員隨即將每一物品擱在櫃臺上的一塊玻璃板上一掃，好使板下的掃描機閱讀條形碼。
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