As an economical and effective method, the expressway noise barrier is a primary measure to reduce traffic noise.

高速公路隔声屏障作为一种经济有效的方法，是降低交通噪声的主要措施。

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Arbitration is an economical and effective way to handle disputes.

仲裁是一种经济有效的处理争端途径。

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Push-pull air flow is a kind of economical and effective ventilation flow.

吹吸气流是一种经济和有效的通风气流组织形式。

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But it's readily available in Third World countries because it is economical and effective.

FORBES: Magazine Article

Fortifying the food handed out by the PDS would be an economical and effective way to lower rates of anaemia and increase nutrition.

ECONOMIST: Child malnutrition in India

The most economical and effective congestion solutions involve traditional road building and transit use, combined with traffic management strategies such as signal coordination and rapid crash removal, and demand management strategies like telecommuting and flexible work hours.

FORBES: Chris Christie and the Highway Spenders