面积 V 型对接 82.51665605 88.48075767 95.59955982 103.8730625 113.3012657 123.8841695 135.6217738 148.5140787 162.561084 177.76279 194.1191964 211.6303034 230.296111 258.616619 280.0918277 302.7217368 326.5063465 351.4456567 377.5396675 面积 面积校核 54 67.5 54 67.5 54 67.5 54 67.5 54 67.5 88 110 130 162.5 180 225 238 297.5 未开坡口法兰接管焊接 119.3 111.6 177.6 166.5 155.9 145.9 单边V坡 104.5 98.02 92.06 86.67 136.5 12