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It is convenient for fighting and evacuation, and a circular fire lane should be set up. With the accelerating pace of urbanization, urban land is increasingly tight, which promotes the construction of high-rise buildings. Many high-rise buildings, due to poor consideration of fire prevention design and other reasons, have many congenital hidden dangers, and fires occur from time to time, causing heavy losses. In order to create convenient conditions for fire fighting and rescue work and ensure the safety of buildings, circular fire lanes should be set up around high-rise buildings. However, regardless of the size of the building, it is indeed difficult to require the circular fire lanes. Lanes can be set up along the two long sides of the building. In order to prevent the collapse of building components in case of fire from affecting the normal operation of the fire lane, the distance between the fire lane and the outer wall should be 5m. There should be no trees, overhead pipelines, etc. that hinder the operation of climbing fire engines between fire lanes and high-rise buildings. If the total length of the building exceeds 220m, a fire lane shall be set up to pass through the building. There is no inner courtyard in the building, there are ring fire lanes around it, and fire engines crossing the building need to be set up. Q: An L-shaped high-rise building has a total length of about 170m, a length of 120m along the street, and a length of 50m along the inner street (residential road). Do you want to set up fire lanes crossing the building? A: The relevant provisions of the "Construction Regulations" and "High Regulations" consider that there is no restriction on the length of the two wings on the premise of meeting the requirements of fire fighting and evacuation. The building only needs to set up a pedestrian passageway connecting the street and the inner courtyard at the part over 80m along the street, and there is no need to set up a fire lane. In the planning of fire lanes, in addition to the relevant provisions of the "Construction Regulations" and "High Regulations", attention should also be paid to清圣祖康熙（许还山饰）晚年，四阿哥胤祯父凭子贵得承大统，极受康熙宠爱的孙子弘历也同时被立为太子，清宫内围绕着三代帝王的千古悬案终于拉开帏幕……雍正（刘冠雄饰）法治严苛，其暗杀组织“血滴子”更闻名天下，一时之间冤狱遍布，哀鸿遍野。少年弘历（吴京饰）奉旨微服巡抚江南，因缘际会结识了两名神秘少女，从而展开一段孽缘……弘历江南之行险阻重重，历经生死劫难之际，蓦然发现自己的身世背后竟隐藏着一个重大的秘密；而意中人鱼娘及其师姐吕四娘（范冰冰饰）要刺杀的仇人竟是当今皇上……Button-Reaction Attack一线之隔，很近。夏晴和高心雅本是一对形影不离的好闺蜜、好邻居。夏晴的父母离婚，不久夏父娶了对门高心雅的母亲，两家关系从此变得紧张。夏晴和高心雅也从好友变对手。然而阴差阳错地，她们竟嫁给了一对亲兄弟——钟家晨和钟力扬，工作上也成为了上下属关系，从此，两人之间的关系变得越发微妙。由于现实种种原因，两对新人不得不住在同一屋檐下，并在婆婆张英红的高压政策下生活。夏晴和高心雅从谋划单飞，到发誓把对方赶走，硬着头皮明争暗斗，两人之间的较劲时常波及到钟家兄弟身上，兄弟二人进退两难。经过长期的磨合相处，经历风风雨雨后的两个女孩有了各自的成长，她们慢慢意识到对方的优点和长处，互相依靠、并肩作战。最终，在家庭遭遇危机的紧要关头，两人携手互助，共渡难关。Mark