The modified rubber of the invention can effectively improve the property of pitch, is suitable for roadway paving, and has long service life and can reduce the sequent maintenance charges.
本发明中的新型改性橡胶，可有效改善沥青的性能，适合铺设道路路面，使用寿命长，减少了后续的维护费用。
The upper level will accommodate a three-lane roadway; the lower level will provide space for service and safety installations.
上层为三跑道，下面隧洞为安全、维护提供的空间。
The upper level will accommodate a three-lane roadway; the lower level will provide space for service and safety installations.
上层为三跑道，下面隧洞为安全、维护提供的空间。
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