bottom unloading of tank cars

例句：

1. 1. The company's newmodel truck has a unique bottom unloadingsystem that makes loading and unloading mucheasier.
   该公司的新型卡车拥有独特的底部卸载系统，使装卸更加便捷。
2. 2. During the constructionphase, it is important to ensure thatthe bottom unloading process is efficient andsafe for workers.
   在施工阶段，确保底部卸载过程对工人既高效又安全非常重要。
3. 3. The engineer carefully designed the bottom unloading system to minimize the risk of spills during transportation.
   工程师仔细设计了底部卸载系统，以减少运输过程中发生泄漏的风险。