chemical injection truck

例句：

1. 1.This chemical injection truck is used for dispensing chemicals in the laboratory.
   这辆化学注射车用于实验室中分发化学品。
2. 2. The chemical injection truck was used to deliver the chemicals to the production line.
   这辆化学注射车被用来将化学品输送到生产线。
3. 3.The chemical injection truck has a large storage tank and a spray nozzle at the front.
   这辆化学注射车有一个大型储液罐和一个位于前面的喷头。