英语词汇“opal dirt”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	opal dirt
释义	opal dirt noun [mass noun] Australian The type of soil in which opals are found: mechanization means the opal dirt can be removed in bulk... Down the slope towards Lightning Ridge, the depth to opal dirt was 65 feet. The opal dirt is much harder than on the rest of the field. The mine is lighted by electricity and a power plant inside takes opal dirt back to the surface.
随便看	prothonotarial prothonotariat prothonotary prothonotaryship prothonotary warbler prothoracic prothorax prothrombin prothrombin time prothyl prothyron prothyrum prothysteron protiated protic protichnite protid protide protist Protista protistan protistic protistologist protistology protium

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