This includes both the integration of legacy devices capable of reading serialized barcode products, as well as introducing newer sensors capable off reading RFID tags.
这包括与能够读取序列化条形码的现有设备集成，以及引入能够读取RFID标签的新型传感器。
2
The end tags and are optional and can be left off. Note that lists can be nested, one within another.
结束标记和是可选的，它可以自动终止。
3
An application built around expat is happy to pull off a few tags of interest as it reads through that much XML, likely utilizing orders of magnitude less memory than the document size.