Augmented loop matrix +1when branch b; is in loop lk and has the same orientation; B. =]; ={-1 when branch b; is in loop lk and has the opposite orientation; when branch; is not in loop lk
1. Mode of transport and receipt documents (1 By sea: Marine/Ocean B/L; Through B/L CTD(Combined Transport Document or B/L) MTD (Multi-model transport document (2 ) by air: Air Waybill (3) by road or rail: Cargo Receipt(承运货物收据);