Except for TFE disc and packing, and identification tag, all parts are identical to standard valves.

除了TFE阀瓣和填料, 以及标签牌以外, 标准配置阀门中的所有部件都是相同的.

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A dual - frequency RFID ( radio frequency of identification ) tag antenna with planar inverted - F antenna ( PIFA ) structure is realized.

设计和实现了基于平面倒F天线 ( PIFA ) 结构的双频段RFID标签天线.

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