New series of double close loop controlled high precision NC machine tool has been developed in accordance with the demands for high precision NC machine tools in manufacturing industry.
针对制造工业对高精度数控机床的需求，研究开发出新型双闭环高精度数控机床系列产品。
Through close loop control by an oxygen sensor, the actual air-fuel ratio is controlled to the ideal air-fuel ratio and the exhaust emission is reduced by a three unique catalytic converter.
利用氧传感器实现闭环控制，将实际空燃比控制在理论空燃比附近，从而通过三元催化剂控制排放。
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