cold storage door

例句：

1. 1. The cold storage door is closed, preventing any intruders from entering.
   冷库门关闭了，防止任何入侵者进入。
2. 2. The cold storage door has beenopened to allow the goods to be transported.
   冷库门已经打开，以便货物被运输。
3. 3. Thecold storage door is designed tokeep the temperature below freezing point.
   冷库门设计成保持温度低于冰点。