一旦这一批药品准备装运，所有的药品就将被装箱，每个箱子上面都有一个868 MHz的Raflatac 公司Dipole（双极子）被动式UHF频段的RFID标签，在PackAgent的系统中，这样的标签拥有唯一序列号来标记箱子里面的货物。
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在翻转期间，磁场保持它的双极子外形，保留了古磁学家一直能够追踪南极踪迹的现象。
And during the transition, the field retains its dipole shape, a phenomenon paleomagnetists have traced all the way to the south pole.
将子结构法和双倒易边界元法联合应用于预测具有三维复杂流存在时管道和消声器的四极参数与传递损失，阐述其基本原理与数值过程。
A substructure method and a dual reciprocity boundary element method (DRBEM) are applied to calculate four-pole parameters and transmission loss of ducts and silencers with complex flow.
其次，先将靛红和丙二腈缩合制备得亲偶极体后与另一分子靛红及肌氨酸进行三组分反应可以合成含有两个不同吲哚片段的双螺环化合物。
Secondly, the three components of isatin, sarcosine and dipolarophiles condensed by isatin and malononitrile were involved in forming dispiro compounds including two of different indole moieties.
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