tar cooler box

例句：

1. 1. The engineer used a tar cooler box to cool down the hot oil before it was poured into the machine.
   工程师使用一个油桶冷却箱来冷却热油，然后再倒入机器中。
2. 2. The company had invested in a new tar cooler box to improve its efficiency.
   该公司投资了一个新的油桶冷却箱，以提高其效率。
3. 3.The tar cooler box was designed to prevent oil from leaking during transportation.
   这个油桶冷却箱的设计是为了在运输过程中防止油泄漏。