These cards may contain contacts, a magnetic stripe or an embedded antenna but do not contain any other active or passive circuit elements.
这些卡可带有触点、磁条或嵌入式天线，但不包含任何其他有源或无源电路元件。The objective of the contract is to have all Defense Distribution Centers capable of receiving incoming shipments tagged with passive RFID.
该合同的目的是让所有国防配送中心接收无源RFID标签进货的能力。If the network does not contain a battery or other energy generators, known as passive network.
如果网络中不包含电池或发电机等能源，就称为无源网络。（。Thomas, passive RFID tags is very easy to counterfeit, because they do not contain the traditional encryption and security protocols.
Thomas教授称，无源RFID标签很容易伪造，因为它们不含有传统的加密算法和安全协议。Long-period fiber Grating(LPFG) sensor is one of the potential fiber devices that have been developing quickly in recent years.
长周期光纤光栅传感器是近年来发展最为迅速的新型光纤无源器件之一。Passive filter because of its simple structure, easy maintenance, and low cost is still commonly used means of filter.
无源滤波器由于其结构简单、维护方便、造价低廉等优点成为目前普遍采用的一种滤波手段。to passively locating a moving emitter with direction of arrival(DOA) and time difference of arrival(TDOA) of the emitter signal is given.
提出了一种利用平面解三角，并结合辐射源信号到达方向和脉冲到达时间差对运动辐射源进行单站无源定位的算法。The impulsive controller, which is capable of quickly synchronizing complex networks, is addressed with a passive method.
根据非线性系统的无源化设计方法，设计了使复杂网络快速同步的脉冲控制器。At present, Fiber Bragg Grating(FBG) is one of the most potential and typical optical passive components.
光纤布喇格光栅（FiberBraggGrating，FBG）是目前最有发展前途、最具代表性的光纤无源器件之一。