结构图纸中:JLL2(2) 250X600 1G-200X3 1U-100X3@200 1Y-100X3 M10@200

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结构图纸中:JLL2(2) 250X600 1G-200X3 1U-100X3@200 1Y-100X3 M10@200
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结构图纸中:JLL2(2) 250X600 1G-200X3 1U-100X3@200 1Y-100X3 M10@200
结构图纸中:JLL2(2) 250X600 1G-200X3 1U-100X3@200 1Y-100X3 M10@200

结构图纸中:JLL2(2) 250X600 1G-200X3 1U-100X3@200 1Y-100X3 M10@200
JLL2(2)表示基础连梁,编号为2,跨度是2跨,截面尺寸:宽250mm,高600mm;其它的没有意思,是错误的符号