常見(jiàn)例句雙語(yǔ)例句Although the amygdaloidal native copper aggregate was known in vesiculate lava at the top of the Emeishan basalts, economic copper ore deposits had not been discovered until two years ago.過(guò)去已知在峨眉山玄武巖頂部氣孔狀熔巖中含有杏仁狀自然銅，但很少搆成連續(xù)的銅鑛躰。 返回 amygdaloidal lava