The structure of the photographic elevator generally includes the bottom mobile car, the central column, the main rotating arm and the working platform, and so on.
摄影升降机的结构一般包括底部移动车、中心立柱、主回转臂和工作平台等几部分。
2
By analyzing the technology of elevator collapsing to the bottom of pit, and carrying out the experiment, solutions are proposed in this paper.
通过一起电梯蹲底事故的技术分析及实验，找出原因，并提出解决方。
3
Through the access door at the bottom of bucket elevator, you can replace the buckets and check the belt whether deviate.