目的研究降低无轨运输方式施工隧道中空气污染的措施。
Objective To study measures of reducing air pollution in the tunnels which are used the method of trackless transportation to construct.
目的为降低采用无轨运输方式进行施工的隧道中空气污染。
Objective to reduce air pollution in the tunnel which is used the method of trackless transport to construct.
应用TY型燃油添加剂促进柴油燃烧更充分，降低采用无轨运输方式进行施工的隧道中空气污染。
To reduce air pollution in the tunnel which is used the method of trackless transport to construct. Using TY fuel additive to promote the fuel burning more sufficiently.
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