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。
2
The experimental results have shown that exhaust emissions from two stroke motorcycle with the catalytic converter and feeding valve for secondary air have been reduced obviously .
试验表明：安装催化转化器和二次空气供给阀后的二冲程摩托车的排放有了明显的下降。
3
The secondary footprint is a measure of the indirect CO2 emissions from the whole lifecycle of products we use - those associated with their manufacture and eventual breakdown.