... 铁路金属枕木 Railway sleepers of metal 铁路转辙器 Railway switches 鱼尾形接轨夹（铁路） Fish plates [rails] ...
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While using the manual switch in the oblique lane, need manpower to pull railway switches, time-consuming, strenuous and unsafe like this.
在斜巷使用手动道岔时，需要人力去扳道岔，这样既费时、费力又不安全。
The actuality of process and production of heel of 60at rail for railway switches and crossing was introduced, and the congener technology at home and abroad was summarized as well.
介绍了铁路道岔60at轨跟端加工生产工艺现状，国内外同类技术概况。
Railway applications - Fixed installations - DC switchgear - Part 4: Outdoor d. c. disconnectors, switch-disconnectors and earthing switches.
铁路应用- - -固定安装- - - DC开关设备- - -第4部分：室外d . c分连接器，开关-分连接器和接地开关。
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