本文介绍一种用于手表的温度指示器。
The paper shows a kind of Temperature Indicator attached to watch.
温度指示带，是否有一个或多个温度指示器从白变黑。
If one or more of the temperature indicators changed from white to black, replace the temperature indicator strip.
那，这些线索究竟是什么呢？或许你可以把植物想像成一个温度计，一种测量它周边气候的指示器。
It might help to think about plants as a thermometer, a sort of indicator of the climate around them.
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