為了防止異味溢出使得民眾申訴，許多異味處理設備只能於夜間等離峰時段作氣

為了防止異味溢出使得民眾申訴，許多異味處理設備只能於夜間等離峰時段作氣體排放，增加了在廠區工作人員的負擔。

結果 (英文) 1:

In order to prevent odor overflow and public complaints, many odor treatment equipment can only discharge gas during off-peak hours such as at night, which increases the burden on factory workers.

結果 (英文) 2:

In order to prevent odors from overflowing and causing public complaints, many odor treatment equipment can only discharge gas during off peak hours such as at night, which increases the burden on workers in the factory area.

結果 (英文) 3:

In order to prevent people from complaining because of odor overflow, many odor treatment equipment can only discharge gas at night and other off-peak hours, which increases the burden on workers in the factory.