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1. The temperature is 20 degrees Celsius, which is a bit cold for me.
温度是20摄氏度，对我来说有点冷。
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2. This TMCA is a new type of material that has excellent mechanical properties.
这种TMCA是一种具有优良机械性能的新型材料。
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3. The TMCA board is used in the production of electronic devices.
TMCA板用于电子产品的生产。