The roof separation layer is the biggest security hidden danger in bolt support tunnel.
顶板离层是锚杆支护巷道最大的安全隐患之一。
The dispersion and propagation loss can be reduced significantly by properly choosing the thicknesses of the two magnetic films and separation layer.
分析了两个磁性层和间隔层的厚度对静磁后向体波色散和传播损耗的影响。
Waterproof coiled materials of SBS are a flexible felt of polyester fibre as casing, SBS modified asphalt as coating and polyethylene film as antiseizing separation layer.
SBS防水卷材是以聚脂纤维为胎体，以SBS橡胶改性石油沥青为漫渍涂盖层，以聚乙烯塑料薄膜为防粘隔离层的一种柔性油毡。
Waterproof coiled materials of SBS are a flexible felt of polyester fibre as casing, SBS modified asphalt as coating and polyethylene film as antiseizing separation layer.
SBS防水卷材是以聚脂纤维为胎体，以SBS橡胶改性石油沥青为漫渍涂盖层，以聚乙烯塑料薄膜为防粘隔离层的一种柔性油毡。
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