通过工况法排放测试证明，加装二次进气装置可以有效降低摩托车排放。
According to the emission test results, the emissions from motorcycles can be reduced effectively after fitted with the secondary air-in devices.
通过工况法排放测试证明，加装二次进气装置可以有效降低摩托车排放。
According to the emission test results, the emissions from motorcycles can be reduced effectively after fitted with the secondary air-in devices.
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