| Subject | English | Russian |
| cust. | c/t/o | страна-производитель (C.T.O or C/T/O stands for Country of Origin. When booking an international shipment C/T/O is a required field on the booking form. This means the sender is required to state the country the goods are being sent from. volohva) |
| O&G | C.T.O.D. | испытание на смещение раскрытия вершины трещины (MichaelBurov) |
| O&G | C.T.O.D. | смещение раскрытия вершины трещины (MichaelBurov) |