unit of step module to prefabricated stairs autoportanti, not that staircase prefabricated freestanding unit acquiring it.

• 1. 一种预制装配式楼梯模块式组合模具及其安装方法 [P] . 中国专利： CN109653495B . 2020.01.17
• 2. 一种预制装配式楼梯模块式组合模具及其安装方法 [P] . 中国专利： CN109653495A . 2019-04-19
• 3. Prefabricated staircase supported partially by wall - has two bolts between steps, with encasing pressure units in unsupported areas [P] . 德国专利： DE2748039A1 . 1979-05-03

  机译： 预制楼梯部分由墙支撑-台阶之间有两个螺栓，在无支撑区域装有压力装置

• 4. Prefabricated concrete-component staircase formwork - continuously adjustable, with cross fillets, displaceable to adjust step units central interval [P] . 德国专利： DE2407871A1 . 1975-08-28

  机译： 预制混凝土构件楼梯模板-连续可调，带有交叉圆角，可移动以调节台阶单元的中心间隔

• 5. Prefabricated unit stairs step ends linkage support bolt - has retainers and heads screwed onto and into centre piece ends [P] . 德国专利： DE2723880A1 . 1978-11-30

  机译： 预制单元楼梯台阶末端连杆支撑螺栓-带有固定器和头部，分别拧入和插入中心件末端

• 1. Research on Production Layout Design of Concrete Prefabricated Units Based on SLP [C] . Yang Liu, Ding Li International Conference on Smart City and Intelligent Building . 2019
• 2. Step by Step: A Survey of the Hierarchy Found in Charleston Staircases with an Emphasis on Secondary Stairs [D] . Applewhite, Leah Dawn. 2021
• 3. Operational Modal Analysis Testing and Modelling of Prefabricated Steel Modules with Different LSF Composite Walls [O] . Maria Rashidi, Pejman Sharafi, Mohammad Alembagheri, 2020
• 4. Prefabricated Secondary Units for Overcoming the Shortage of Houses: A Case Study of New Zealand [O] . Milad Moradibistouni, Brenda Vale, Nigel Isaacs 2019
• 5. New Step by Step Strategy for Repair and Refurbishment Projects: A Gradual211 Realization of Repair Measures Concerning the Large Stock of Prefabricated 211 Apartment Blocks Built during the Soviet Era [R] . Lindholm, S., Hyartt, J., Kiiras, J. 1998

• 1. 整合单元内容提高复习成效——上海版牛津英语5 B Modulel Unitl ＆Module2 Unit2 Revision课例研究 [J] . 吴建新 ,丁征宇 . 新课程学习：上 . 2012,第011期
• 2. 新目标英语七年级(上)Starter Units 1-3 STEP BY STEP随堂通 [J] . . 中学生英语 . 2020,第033期
• 3. 新目标英语七年级(上)Starter Units 1~3 STEP BY STEP随堂通 [J] . . 中学生英语 . 2019,第033期
• 4. 新目标英语七年级（上）Starter Units 1-3 STEP BY STEP随堂通 [J] . . 中学生英语 . 2018,第033期
• 5. 新目标英语七年级（上）Starter Units 1～3 STEP BY STEP随堂通 [J] . . 中学生英语 . 2017,第033期
• 6. 一种新型预制楼梯连接节点研究 [C] . Yang Xiaojian ,杨晓剑 . 第七届全国建筑结构技术交流会 . 2019
• 7. 预制混凝土楼梯应用于框架楼梯间的抗震性能分析 [A] . 徐涛 . 2015