"国标"可以翻译为 "National Standard"。Plug in China, Australia, New Zealand, Argentina, the feature isThree Flat Heads。"美标"可以翻译为"American Standard"。Plug in the United States, Canada, Japan, Brazil, the Philippines and other countriesTaiwan ProvinceUse, feature isone round and two flat。

"英标"可以翻译为 "English Pinyin"。"The plug is in.Hong KongAnd the United Kingdom, India, Pakistan, Singapore, Malaysia, Vietnam, Indonesia, the Maldives, Qatar, and the United Arab Emirates in Dubai.In countries and regions such as, the feature isThree square heads。