block system
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block system [′bläk ‚sis·təm]

(civil engineering)

A railroad system for controlling train movements by using signals between block posts, that is, the structures that contain the instruments indicating the positions of trains, conditions within block sections, and control levers for signals and other functions.

(mining engineering)

A system of pillars in which a series of entries, rooms, and crosscuts are driven to divide the coal into blocks of about equal size which are then extracted on retreat.

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No references found			Railways installed centralized traffic control and auto block systems in 1970 and 1993 on main line from Karachi to Kotri but most of the existing systems are very old and obsolete, an official of Pakistan Railways said. Saudi bank consents to finance replacement of railway signalling ... by Balochistan Times (Baluchistan Province, Pakistan) The standards include test methods, material specifications, practices, and guides and relate to manufactured materials such as mulches and tackifiers, biodegradable blankets, turf reinforcement mats, sediment retention and filtration devices, gabions, grout-filled mats, geotextiles, and articulating concrete block systems, as well as natural materials including soil, rock riprap, and willows and grasses. ASTM standards on erosion and sediment control technology, 2d ed by SciTech Book News Only 8 mm wide, the 1180 fits Phoenix Contact, WACO, Entrelac and other block systems without consuming valuable space. Circuit breakers by Designfax			block mark block mill block modillion block mountain Block Mountains block move block multiplexor channel block operation block parity block plan block plane block polymer Block Printing block protection block protector block quoin Block Redundancy Check block section block sequence Block Signal System block sort block standby Block Started by Symbol block structure block system block systems block tin block transfer block transfer computations Block, Adriaen Block, Herbert Block, Herbert Lawrence Block, Martin block-and-cross bond block-in-course block-in-course bond block-structured blockade Blockade, Raising of blockboard Blocked Currency blocked F-format data set blocked impedance blocked impurity band detector blocked operation blocked process blocked reading frame blocked records blocked resistance blocked-out ore blocked-up			Block Shift Network block shipment block signal block signal system Block Signature Self-Checking Block size block sort Block sorting Block Space Agreement Block Specification Block Spreading Code Division Multiple Access block standby Block Started by Symbol Block Started by Symbol Block Static Load Balancing Block Storage Segment Block Storage Start block stowage loading Block Street & Building Block structure Block Structured Query Language Block style Block Sum Check Block Surface Light Microscopy block system block system block systems Block Tape Recorder Block Termination block the way Block time Block tin Block tin Block trade Block trader Block Traders Block Trades Block Trading Block Transfer Block Transfer block transfer computations Block Transfer Controller Block Transform Coded Image Block Translation Look-aside Buffer Block Turbo Code Block Type block up block up block up Block Up Converter Block Value Decomposition Block Valve Station block vertebra block vertebra block vertebra block vote Block votes

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block system (redirected from block systems)

block system
(redirected from block systems)