Adopting N-patterning guide bar shogging mechanism.
采用N型梳栉横移机构。
英语百科
Guide bar
The rubber-tyred metro systems that incorporate 1,435mm (4ft8⁄2in) track have angle irons as guide bars along the roll ways. The Busan Subway Line 4, that lacks a rail track, has I-beams installed with the flanges being vertical. The Sapporo Municipal Subway, that lacks a rail track as well, has none.