With the Ballastless track technology extensive used, the problem of the track on solid bed damage and rectification is paid more and more attention now. 摘要隨著(zhù)無(wú)碴軌道技術(shù)的廣泛運用，整體道床產(chǎn)生的病害及維修問(wèn)題也越來(lái)越引起重視。
Successful development of the crane solves the problems of high-speed railways' unballasted track laying and brings obvious economic and social benefits. 博格板大懸臂門(mén)式起重機的研制成功解決了高速鐵路無(wú)碴軌道板的鋪設難題，創(chuàng )造了明顯的經(jīng)濟和社會(huì )效益。
