1.4.5 Handrail — a rail to provide handhold on a platform, walkway, stairway, or step ladder. It may form part of a guard railing. 扶手平台、走道、楼梯或踏板式梯子上供人的围栏,可为护栏的一部分。 1.4.6 Individual-rung ladder — a ladder without stiles, each rung of which is ...
. . . 9 3.3DESIGN 设计 10 3.4 GUARDRAILING 护栏 10 SECTION 4 STAIRWAYS 第四章 楼梯 4.1 WIDTH AND ANGLE OF SLOPE 宽度和坡度 12 4.2FLIGHTS 梯段 12 4.3STAIRS 楼梯 12 4.4 LANDINGS 梯段平台 12 4.5 GUARDRAILING 护栏 12 4.6 HANDRAILIN 24、G 扶手 12 SECTION 5 FIXED LADDERS 第五章 固定梯子...