development of the three-way catalytic converter
三元催化转化器的研制
以上为机器翻译结果，长、整句建议使用 人工翻译 。
With regulations on vehicle exhausts become increasingly strict, development and application of the three-way catalytic converter has become the fundamental approach to control vehicle emissions.
随着汽车排放法规的日益严格，三元催化转化器的开发和应用已经成为控制汽车排放污染物的根本途径。
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