The double-track type external fixed bracket mainly comprises a power connecting rod with threads, a sliding connecting rod without threads, 4-6 sliding bodies and an ear-shaped body.
主要由带螺纹的动力连接杆、不带螺纹的滑动连接杆、4～6个滑动体和耳状体组成。
This article introduces the construction technological process of a new type of ballastless track, viz. the double-block track and performs a cost analysis of the same.
介绍一种新型无碴轨道形式即双块式无碴轨道的施工工艺过程，并进行造价分析。
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