相一致
发表于 2025-3-25 06:32:43
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Medley
发表于 2025-3-25 09:23:02
Marvin Camras names and as a result more efficient encodings can be provided. For example, a problem like the 8-puzzle can be codified in terms of four actions with no arguments; Hanoi, can be codified with a number of ground actions independent of the number of disks; resources and constraints can be easily rep
conception
发表于 2025-3-25 12:05:53
names and as a result more efficient encodings can be provided. For example, a problem like the 8-puzzle can be codified in terms of four actions with no arguments; Hanoi, can be codified with a number of ground actions independent of the number of disks; resources and constraints can be easily rep
大吃大喝
发表于 2025-3-25 18:23:21
Magnetic Recording History and Early Recordersnvention—a device that could record the human voice on a steel wire. He could listen to the wire as many times as he liked, or wipe it off at any time and put on a new record. Most remarkable of all, the wire was never used up. Poulsen did not change it physically in any way—it could be played and r
短程旅游
发表于 2025-3-25 23:14:44
Fundamentals of Magnetic Recordingt is compact, economical, easily updated, and instantly retrievable. Magnetic data banks equivalent to large libraries can be scanned in a few seconds, and the selected information displayed or printed immediately.
circuit
发表于 2025-3-26 00:14:05
Magnetic Record Mediato sputtered cobalt-chromium for perpendicular recording. The manufacture, properties, testing and uses of important record media are discussed in detail in this chapter. Tables and graphs specify physical and magnetic characteristics of particles, depositions, solid media and substrates.
Chagrin
发表于 2025-3-26 05:46:04
Magnetic Headsasing heads convert electrical energy into magnetic energy that reacts with the tape or other recording medium. Magnetic playback heads apparently convert magnetic energy of the recording into electrical energy at the output terminals. (More correctly, it is not the magnetic energy that is converted
首创精神
发表于 2025-3-26 08:33:42
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Diatribe
发表于 2025-3-26 14:37:58
Electronic Systemsthout electricity, by recording with a vibrating magnet attached to an acoustical diaphragm. Playback could use the varying attraction to a small piece of iron as the magnetized record was drawn past it by a spring-wound motor. However magnetic recording, as we know it, depends strongly on electroni
Chauvinistic
发表于 2025-3-26 16:54:11
Tape Transportsrn-day dictation machines. Indeed the drive stability was largely ignored while designers’ attention was concentrated on shuttling wire or tape back and forth conveniently and rapidly, together with indexing, backspacing, level winding, and other niceties.