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1 Since these mobile sources, as they are called, are increasingly the major contributors to the urban air pollution problems that remain, this change bodes well for the future.
2 Because of the boom of the vehicles number, mobile sources emission becomes more and more serious. It has become the most important sources of atmospheric pollution in urban.
3 Complex terrain of network design, dust source points sealed design and the choice of devices, mobile sources dust-dust control and grass control are the key link.
4 New "power collector" may be in patients with heart beating, hanging in the operation of the subway and tens of thousands of commuters as the pace of mobile sources of electric energy generated.
5 The report covers 181 air toxics and diesel particulate matter and estimates risks from exposure to emissions from industrial sources and mobile sources such as cars and trucks.
词汇 Mobile sources in a sentence (esp. good sentence like quote, proverb...)
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