Hydrographic equipment is used in hydrographic surveys to measure tides and currents, and collect wave information of physical oceanography. These data include bottom depth measurements and are used in various applications such as hydrographic charting, tracing offshore oil and gas reserves, port and harbor management, and coastal engineering. Hydrographic equipment includes SONAR, GPS/DGPS, echo sounders, profilers, and tidal gauges.

Ballast water treatment systems refer to various products that assist in removing the impurities in ballast water, normally used by shipping vehicles to maintain balance and stability. Ballast water taken up by ships at the port contains many harmful and toxic organisms. A wide variety of applications for ballast water treatment systems has resulted in increased demand for these products. Ballast water treatment technologies are used to remove or destroy pesticide active ingredients and other pollutants in the ballast water and prevent discharge of invasive species in the new aquatic ecosystem.

In general, the terms 'small arms' and 'light weapons' are used for small and lightweight weapons that can be operated by one person. They usually include revolvers, pistols, rifles, submachine guns, light machine guns, heavy machine guns, grenade launchers, portable anti-aircraft guns, portable anti-tank guns, and mortars.

In general, the terms 'small arms' and 'light weapons' are used for small and lightweight weapons that can be operated by one person.

An automotive oil filter is a device designed to remove impurities and undesired components from circulating engine oil in a vehicle. Engine oil lubricates engines, and it needs to be freed from particles that may increase friction against piston movement and reduce engine efficiency. Canister-type filters are the most commonly used automotive oil filters.

EMC is a phenomenon that describes the ability of electronic and electrical systems or components to function correctly when they are close together.