求翻译：所有货物2011年10月20日前装运，从大连港出发前往丹吉尔港，但以信用证7月中旬以前送达卖方为条件。不许分批装运，不许转运。是什么意思？

All cargo on October 20, 2011 shipment departure to Tangier to Hong Kong from Dalian Port, but to the letter of credit before mid-July, served on the seller as a condition. Are not allowed Partial shipment not allowed transshipment.

All of the cargo shipment October 2011, 20 days before departure to Tangier from Dalian Port Hong Kong by a letter of credit, but by mid-July, served on the seller. Do not allow Separate shipments were not allowed to transfer.

All cargos October 20, before 2011 ship, embarks from Dalian Port goes to the Tangier port, but by letter of credit mid-July before delivers the seller is a condition.Does not have to ship in turn, does not have to transport.

All goods shipped before October 20, 2011, departure from Dalian port Tangiers port, but conditioned on previously served on the seller to credit in mid-July. Don't allow partial shipment and transshipment is not allowed.