psi

名词 n. 符号
中文释义
发音 psī

英文释义

名词 n.
  1. The twenty-third letter of Classical and Modern Greek and the twenty-fifth letter of Old and Ancient Greek. countable
  2. A form of psychic energy. uncountable
    — ‘Come, lad,’ he said. ‘We will take tea together and speak of the noumenon, the psi and other more heterogenous phenomena.’
符号
  1. Pound per square inch (an imperial unit of pressure)
    — Each turbogenerator consisted of a steam turbine, powered by 900 psi of superheated steam, that was coupled by a set of reduction gears to a General Electric marine alternating-current generator operating at 1,800 rpm. Each generator had a capacity of 2,000 kilowatts of three-phase power at 450 volts and 60 hertz. The main 450-volt switchboard was energized by the two turbogenerators. The emergency switchboard, in the emergency generator room, was fed from the main switchboard through an electrical tie.

词形变化

psis plural P.S.I. alternative PSI alternative

词汇关系

衍生词
psi function psi particle psivamp

词源

词源 1
From Middle English psi, from Latin psī, from Ancient Greek ψεῖ (pseî), the name for the twenty-third letter of the alphabet (Ψ, ψ).
词源 2
Initialism of pounds per square inch.
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