double jet carburetor

例句：

1. 1. The car's engine has a double jet carburetor that allows for precise fuel delivery.
   这辆车的引擎有一个双喷气式化油器，可以精确地输送燃料。
2. 2.The manufacturer claims that the double jet carburetor reduces emissions by up to 30%.
   制造商声称，双喷气式化油器可以减少排放高达30%。
3. 3.Engineers are working on developing a more efficient double jet carburetor to improve fuel efficiency.
   工程师们正在努力开发一种更高效的双喷气式化油器，以提高燃油效率。