Odorization pumps are specially designed diaphragm plunger metering pump, plunger travel of the exercise machine lock, each time to maintain a constant output.

加臭泵是专门设计隔膜式计量泵，运动行程械锁定，每量保持恒定。

The key point of the odorization efficiency is the proper selection and utilization of the odorant.

燃气加臭效果好坏关键在于加臭剂合理选择与使用。