A.1.5±0.2 B.1.2±0.2 C.1.0±0.5 D.1.0±0.2
A.R=Rt×254.5×1000/(234.5+t)×L B.R=Rt×234.5×1000/(254.5+t)×L C.Rt=R×254.5×1000/(234.5+t)×L D.t=R×234.5×1000/(254.5+t)×L
A.聚乙烯膜 B.聚酯膜 C.無(wú)膜雙面自粘 D.細(xì)砂
A.45% B.55% C.35% D.60%
A.標(biāo)準(zhǔn)型砌塊 B.主塊型砌塊 C.輔助砌塊 D.異形砌塊
A.30 B.25 C.15
A.100±2℃ B.110±2℃ C.135±2℃ D.150±2℃