Created by GBO Design, the Di-Cycle is far bulkier than traditional bicycles – which would seem to limit its application – but does offer an intriguing solution to amphibious travel.
Method 1 clean surface with aqueous cleaning solution, apply passivation paste to surface, rinse surface with DI water until traces of chemicals are removed.
方法1：用水清洁溶液清洁表面，向表面应用钝化剂，用去离子水冲洗表面直到全部除去化学试剂的痕迹。
3
There are several solution concepts with respect to di? Erent rationality, such as core, nucleolus, etc.