UL

/ul/
Underwriters Laboratories (UL) are most widely known for standards in electrical products.

noun [专属名词]abbr. (美)保险商实验所(Underwriters' Laboratories)

E.g., every light bulb, lamp, or outlet purchased in the U.S. usually has a UL symbol and says UL Listed.
例如,在美国购买的每一个灯泡、台灯或插座通常都会带有UL标志,并标注“UL 认证”。

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