ul
美音:[ʌl
]
英音:[ʌl
]
Underwriters' Laboratories (美国)保险商实验所
难易程度:
ul为短语/超纲词汇
ul
UL
Underwriters' Laboratories a US organization which tests the safety of electrical equipment and makes rules for the companies that produce it. Electrical equipment that is approved by the UL has a special seal (=mark) on it
Underwriters' Laboratories a US organization which tests the safety of electrical equipment and makes rules for the companies that produce it. Electrical equipment that is approved by the UL has a special seal (=mark) on it
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