“synthetic gem”的概念、定义、翻译、参考文献-科学参考

单词	synthetic gem
释义	synthetic gem [sin`thed·ik `jem] ^MATERIALS A precious or semiprecious stone made by artificial processes, for example, synthetic diamonds made by extreme heat and pressure on carbon, used industrially; and synthetic rubies made by high-temperature crystallization of aluminum oxide, used in laser equipment.
随便看	access flooring access gap access hole accessibility condition access line access management access matrix access mechanism access method access mode accessorius accessory accessory bud accessory cell accessory chromosome accessory cloud accessory ejecta accessory element accessory fruit accessory gland accessory mineral accessory movement accessory nerve accessory plate accessory sexual characters

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