资阳车城大道的火车轨道更换成水泥枕木了！为什么在枕木孔里放青草呢？
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data-qf-origin="front2_0_lkdksalK0jsLROCl0K-mdkfARRLU.1630365672.jpg?watermark/1/image/aHR0cDovL3BpYy5hcHAuaml1cXVoZS5jb20vd2F0ZXJfaW1nXzIwMjAxMjA3XzQzOC5qcGc=/dissolve/100/gravity/SouthWest"></p><p class="empty_paragraph"> </p><p class="qf_image big noneditable" contenteditable="false"><img src="https://pic.app.jiuquhe.com/front2_0_llte2eyDovT7NUekLt-60Mpbld9s.1630365672.jpg?watermark/1/image/aHR0cDovL3BpYy5hcHAuaml1cXVoZS5jb20vd2F0ZXJfaW1nXzIwMjAxMjA3XzQzOC5qcGc=/dissolve/100/gravity/SouthWest" alt="" width="3456" height="4608" data-qf-origin="front2_0_llte2eyDovT7NUekLt-60Mpbld9s.1630365672.jpg?watermark/1/image/aHR0cDovL3BpYy5hcHAuaml1cXVoZS5jb20vd2F0ZXJfaW1nXzIwMjAxMjA3XzQzOC5qcGc=/dissolve/100/gravity/SouthWest"></p><p> </p><p><video class="qf_video" style="background-color: black; height: 270.6766917293233px; width: 360px;" src="https://pic.app.jiuquhe.com/front2_1_lgN4rmQjFXP4sAf4qbFcw5mmnHGP.1630365676.mp4" poster="https://pic.app.jiuquhe.com/front2_1_lgN4rmQjFXP4sAf4qbFcw5mmnHGP.1630365676.mp4?vframe/png/offset/1" controls="controls" width="0" height="0" frameborder="0" data-qf-origin="front2_1_lgN4rmQjFXP4sAf4qbFcw5mmnHGP.1630365676.mp4" data-qf-poster-origin="/storage/emulated/0/Android/data/com.mocuz.jiuquhe/files/video_cover_cache/1630365671731.jpg" data-mce-fragment="1"><source src="https://pic.app.jiuquhe.com/front2_1_lgN4rmQjFXP4sAf4qbFcw5mmnHGP.1630365676.mp4" type="video/mp4"></video></p><p> <img src="http://pic.bbs.jiuquhe.com/forum/202104/07/103721nqqqpsmy2rhj1q6j.jpg" width="706" _height="799" border="0"></p> <!----></div><!----> 那是一桥枕，轨枕中的孔是插稳定护轮轨的螺杆，用草堵好孔后，进行硫磺毛锚固作业。永远0K 发表于 2021-8-31 10:45
硫磺锚固
这么多回复，这个最专业。
硫磺锚固
铁路绿化
可以
防止异物落下去？
没搞懂勒
发挥想象
发挥想象