all material and energy present in and around an operating system, such as dust, air moisture, chemicals, and thermal energy.

When used in pricing terms such as "Ex Factory" or "Ex Dock," it signifies that the price quoted applies only at the point of origin indicated.

The relative humidity of a gas (or air) vapor mixture is the ratio of the partial pressure of the vapor to the vapor saturation pressure at the dry bulb temperature of the mixture.

An instrument designed to add lubrication into the compressed air line.

A dynamic compressor. A machine in which air or gas is compressed by the mechanical action of rotating vanes or impellers imparting velocity and pressure to the air or gas. In a centrifugal compressor, flow is in a radial direction. Air enters the compres ...

A change made either in the route of a shipment in transit (see Reconsignment) or of the entire ship.

The soft sandstone block sailors use to scrub the deck, so-called, because seamen were on their knees to use it.

An individual or company selling equipment and supplies for ships.

To sail too close to the wind so that the sails start to luff.

Fitted with drilling rig (oil derrick with rotary drill and a mud pumping system), drilling for petroleum.

Is any gas or gas mixture that contains no water vapor and/or in which all of the constituents are substantially above their respective saturated vapor pressures at the existing temperature.

The air compressor continues to run and air supply is matched to the demand by partial unloading. This can be accomplished by a regulator controlled floating inlet or by step unloading.

A name usually given to a State body having control or regulation of public utilities.

Railroad terminal where containers are received or delivered and trains loaded or discharged. Originally, trailers moved onto the rearmost flatcar via a ramp and driven into position in a technique known as "circus loading." Most modern rail facilities us ...

A series of sound signals required by COLREGS to prevent collisions at sea.

An urgent message used on a radio regarding the safety of people or property. A PAN PAN message is not used when there is an immediate threat to life or property, instead the MAYDAY call is used. PAN PAN situations may develop into MAYDAY situations. As w ...

The short aftermost raised deck of a vessel.

A time draft under a letter of credit that has been accepted and purchased by a bank at a discount.

2,204.6 pounds or 1,000 kilograms.

The act of calling for freight by truck at the consignor's shipping platform.