cushion cap meaning in Chinese

承台

If there is no over burden at the river bed , the steel pipe pile cannot be inserted , the floating platform will be adopted , during overwater construction , the author ( using zhong - 60 floating box , etc . ) assembled 40t floating crane by his own design , in this way , the floating crane completed the work of overwater transporting and lifting , such as the transporting of s teel pipe pile , inserting , the erecting of overwater construction platform , overwater moving of drill grid crane , lifting of lifting box of cushion cap , pulling out of steel pipe pile
在水上作业中，作者利用中- 60浮箱等设备自行设计、拼制了40t浮吊，完成了水上运输、水上起重等作业，如钢管桩的运输、插打、水上施工平台的搭设、钻机吊车的水上转移、承台吊箱的起吊、钢管桩的拔除等作业。