但是，我国铁路在无砟轨道施工技术方面尚缺乏成熟经验。
However, the construction technology of ballast less track still lacked mature experience.
如果缺乏布展经验，那么就很可能在布展时间内为小的失误疲于奔命，为大的错误改变施工方案。
If the lack of exhibition experience, then it is possible for small mistakes constantly on the run in the exhibition time, change the construction scheme for a big mistake.
由于干挂工艺相对湿贴复杂，而各种图集规范中涉及不多，目前施工中多依据经验由施工人员自行操作，缺乏理论性。
The suspense craft is self operated by builders in accordance with the experience without theory, relatively complicated aginst furring and rarely involved in every standard.
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