Drag onto the page to add a bollard for blocking vehicle access.
拖到绘图页后,可以添加阻止机动车通行的安全岛护柱.
期刊摘选
Symbol for outdoor lighting. Standard or bollard can be specified.
户外照明符号. 可指定标准式或柱式.
"the road was closed to vehicular traffic with bollards"
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