速通卡需要
但不是所有的RFID都需要

【 在 yonghhu 的大作中提到: 】
: 谢谢。速通卡是需要电池的吧？
: tes Ambassador to the Soviet Union, on August 4, 1945. Because it was passive, needing electromagnetic energy from an outside source to become energized and active, it is considered a predecessor of radio-frequency identification (RFID) technology.
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