WebOct 7, 2024 · Simple holes are shown on engineering drawings by stating the diameter and the depth of the hole. For example, a 20 diameter hole that goes straight through the component would be represented as “Ø20 Through”. Holes that go all the way through the component are known as through holes. Webporthole ( ˈpɔːtˌhəʊl) n 1. (Nautical Terms) a small aperture in the side of a vessel to admit light and air, usually fitted with a watertight glass or metal cover, or both. Sometimes …

What Are Different Types of Ports For Ships? - Marine …

WebA bass reflex system (also known as a ported, vented box or reflex port) is a type of loudspeaker enclosure that uses a port (hole) or vent cut into the cabinet and a section of tubing or pipe affixed to the port. WebAnswer (1 of 5): The word porthole is in fact unrelated to the use of the word ‘port’ for the left hand side of a ship. It originally derived from the need to mount heavier cannon on naval vessels which had to be placed lower than the traditional location on the fore and stern castles for stabil... fnaf security breach artwork

Porthole - definition of porthole by The Free Dictionary

Webporthole: 1 n a window in a ship or airplane Type of: window a framework of wood or metal that contains a glass windowpane and is built into a wall or roof to admit light or air n an … WebHole punching (or sometimes punch-through) is a technique in computer networking for establishing a direct connection between two parties in which one or both are behind firewalls or behind routers that use network address translation (NAT). To punch a hole, each client connects to an unrestricted third-party server that temporarily stores external … WebOct 21, 2006 · IMO-and this could well be wrong-the term porthole refers more to the shape of the window (round) than size. I've seen some portholes that were porbably no more than 18" across, and others that... fnaf security breach backstage guide