PS=polystyrene yoghurt pots,foam meat or fish trays,hamburger boxes &eggs cartons, vending cups,plastic cutlery,protective packaging for electronic goods and toys.是什么意思_PS=polystyrene yoghurt pots,foam meat or fish trays,hamburger boxes &eggs cartons, vending cups,plastic cutlery,protective packaging for electronic goods and toys.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句