但是简单的置换密码玩起来很有趣，尤其是在RPG环境中给某个人传递一条可以在玩游戏的过程中破解出来的编码信息。
But simple substitution cyphers can be fun to play with, especially in an RPG context by handing someone an encoded message that they can work out during game play.
TCS可以在事务过程中利用此信息，定位正确的服务集、发现其功能，并依次向每个服务传递环境信息。
The TCS can utilize this information during a transaction by locating the correct set of services, discovering their capabilities, and propagating context information to each service in turn.
例如，RFID标签可以通过外部的传感器进行读取，以用来在运输过程中传递对环境敏感物品有价值的信息，例如温度和湿度。
RFID tags can, for example, be connected to external sensors in order to relay valuable information about sensitive cargo in transit, such as temperature and humidity.
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