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单词 quartz lamp
释义

quartz /kwörts/

noun

The commonest rock-forming mineral, composed of silica, occurring in hexagonal crystals (clear and colourless when pure) or cryptocrystalline

adjective

Made or composed of or with quartz

ORIGIN: Ger Quarz, from MHGer quarz, from WSlav kwardy hard

quartzifˈerous adjective

Quartz-bearing

quartzˈite noun

A metamorphosed sandstone with the grains welded together

quartzitic /-itˈik/ adjective

Of or like quartzite

quartzˈose adjective

Of, like or rich in quartz

quartzˈy adjective

quartz clock or quartz watch noun

One in which a quartz crystal, energized by a microcircuit, does the work of the pendulum or hairspring of the traditional clock or watch

quartz crystal noun

A disc or rod cut in certain directions from a piece of piezoelectric quartz and ground so that it vibrates naturally at a particular frequency

quartz glass noun

Fused quartz resistant to high temperatures and transparent to ultraviolet radiation

quartz lamp, quartz-halogen lamp or quartz-iodine lamp noun

A compact source of light used for high-intensity floodlighting of large areas, in car (fog-)lamps, cine projectors, etc

quartzˈ-mill noun

A mill or machine for crushing gold-bearing quartz

quartz-porˈphyry noun

An igneous rock with crystals of quartz and feldspar in a compact or finely crystalline ground-mass of the same

quartzˈ-rock noun

Quartzite

quartzˈ-schist noun

A schistose quartzite with mica

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更新时间:2024/12/23 10:32:55