When specified in Purchaser's requisition, vendor shall design platforms & ladders and lugs for them in accordance with Purchaser's platform & ladder arrangement drawings.
如果买方有要求，卖方应根据买方平台及梯子布置图设计平台、梯子及凸耳。
2
In this paper, the lofting and manufacture methods of platform as well as the lofting calculation of winding ladder in large tanks with inner and outer side baffles were introduced.