Letter of credit in which the specified payment is guaranteed by the bank if all terms and conditions are met by the drawee and which cannot be revoked without joint agreement of both the buyer and the seller.

Is a process taking place without any heat exchange with the surroundings.

An adiabatic compression with no increase in entropy; a reversible-adiabatic compression.

The ratio of the real gas isentropic power consumption to shaft input.

The power which is theoretically required to compress a gas under constant entropy from a given inlet pressure to a given discharge pressure. (calculated assuming ideal conditions).

The clear, soft plastic material used for dodger window panels

International Organization for Standardization.

Is a process taking place under constant pressure. To change the volume from state 1 to state 2, heat must be removed. The temperature change is proportional to the change in specific volume.

Lines drawn on a weather map indicating regions of equal pressure. When the lines are close together, this indicates a rapid change in air pressure, accompanied by strong winds.

Line on a chart linking points of equal depth. also known as a Depth Contour.

Is a process taking place under constant volume. To raise the pressure from state 1 to state 2, heat must be added. The pressure change is proportional to the change in temperature.

A line connecting points of equal magnetic variation on a map.

Is a process taking place under constant temperature. To compress the gas from state 1 to state 2, heat must be removed to keep the temperature constant. The pressure change is reciprocal to the change in specific volume.

Is a compression in which the temperature of a gas remains constant.

The ratio of the isothermal power consumption to shaft input.

The power which is theoretically required to compress a gas under constant temperature, in a compressor free from losses, from a given inlet pressure to a given discharge pressure.

Bank that opens a straight or negotiable letter of credit and assumes the obligation to pay the bank or beneficiary if the documents presented are in accordance with the terms of the letter of credit.

The carrier issuing transportation documents or publishing a tariff.

A schedule of all ports to be visited on a ship's cruise, with dates of arrival and departure and the local agents' names and addresses

Route/Schedule