Terms for subject Architecture containing extra

English	Chinese
extra fine-thread	超细牙螺纹
extra-light	特轻的
extra-light drive fit	特轻配合
extra low carbon steel	极低碳素钢
extra-rapid-hardening portland cement	特快硬波特兰硅酸盐水泥
extra space	特殊空间
extra-strong pipe	特强管
extra-strong pipe	特厚壁钢管
ply extra	附加层