A digital simulation is made to the rock pressure distribution of faces with large mining height when crossing gob, which may guide engineering practice.
针对大采高工作面过空巷时的矿山压力分布进行了数值模拟，以掌握其分布规律，从而对工程实践提出指导性意见。
The zebra crossing hot melt marking machine is a special marking equipment used for highway, urban pavement, guide arrow, express highway charging window guide line, and vehicle distance confirm line.
斑马线热熔划线机是用于公路、市内人行道、指示箭头、高速公路收费口导流线、车距确认等标线的专用设备。
The zebra crossing hot melt marking machine is a special marking equipment used for highway, urban pavement, guide arrow, express highway charging window guide line, and vehicle distance confirm line.
斑马线热熔划线机是用于公路、市内人行道、指示箭头、高速公路收费口导流线、车距确认等标线的专用设备。
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