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自行车是我国的重要交通工具,几乎家家都有,不少多层住宅楼内居民每天上下班时手提肩扛自行车上下楼梯,甚感不便。笔者发现将楼梯踏步两边各10cm改成斜道(图1),即可由手提肩扛改为推动自行车上下,达到省力、方便之目的。近几年来,不少城市的多层住宅,在楼梯间一角设置垃圾道,底层设集中存留的垃圾箱。从使用情况来看,由于清运垃圾不及时和不干净,垃圾道内阻塞、垃圾箱满溢污染环境屡见不鲜。笔者提出小改垃圾道的设计,即由
Bicycles are an important means of transportation in China. Almost every family has them. Many residents of multi-storey residential buildings are inconvenienced when carrying scapulae bicycles up and down the stairs every day. The author found that changing the 10cm on each side of the stairway into a chute (Fig. 1) can be used to move the bicycle up and down from the portable scapula to the goal of labor saving and convenience. In recent years, many urban multi-storey houses have set up rubbish roads in the corner of the stairwell, and there is a centralized dumpster on the ground floor. From the point of view of use, due to the untimely and unclean cleaning and transportation of garbage, the environmental pollution caused by clogged garbage pipes and overflowing garbage bins are commonplace. The author proposes that the design of small garbage dumps be designed