regular line造句

Certificate from shipping company or their agents stating that shipment is effected by conference line / regular line vessels under 15 years of age
船公司或其代理开距证明以声明货物由15年以下的公会船/定期船装载
Or their agents certifying that shipment has been effected by conference line and / or regular line vessels only covered by institute classfication clause , to accompany the documents
（由承运人，船公司或他们的代理签发的证明，表明货物已经由船公司按照伦敦协会条款装运，并且已随附有单据。）
It's difficult to find regular line in a sentence. 用regular line造句挺难的