③正脊——其所用瓦件的样数随正吻,正脊上皮(即扣脊瓦顶点)应在正吻嘴头唇下,称为“脊不掩唇”。正脊如用四样以上脊件,自扣脊瓦下用赤脚通脊、黄道、大群色(或称为相连群色条),再下用押带条和正当沟(图 2-1)。正脊如用五样至七样瓦件,则自扣脊瓦下用通脊、群色条(两面用),其下两面用押带条和正当沟(图2—2)。如门楼 3 The right ridge - the number of pieces of its use with the positive kiss, the right ridge epithelium (that is, the button ridge tile vertex) should be under the kiss mouth lip, known as “ridge does not cover the lips ”. Four ridges or more are used as the right ridges, barefoot ridges, ecliptices, large groups of colors (or groups of linked bars) are used under the button ridges, and belts and right channels are used (Figure 2-1). For the right ridge, if five to seven tiles are used, the ridges are used to pass through the ridges and the ridges (for both sides) are used, and the lower two sides are used to hold the strip and the right groove (Figure 2-2). Gatehouse