metering pin carburetor

例句：

1. 1. The new engineuses a more efficient metering pin carburetor design.
   这款新发动机采用了更高效的计量针式喷油器设计。
2. 2.The engineers carefully measured the dimensions of the metering pin carburetor before installation.
   工程师们在安装前仔细测量了计量针式喷油器的尺寸。
3. 3. The car's performance was significantly improved by the replacement of the old metering pincarburetor with a new one.
   通过更换旧的计量针式喷油器为新的，汽车的性能得到了显著提升。