corundum

基本解釋

• n.剛玉；金剛砂

同根派生

• corundum相關(guān)詞

英漢例句

雙語(yǔ)例句

• Rubies, valued as precious gems, are the mineral corundum in its red form.
  作為一種珍貴的寶石，紅寶石是一種紅色的礦物剛玉。
• Moreover, corundum and periclase have not been detected in space dust before.
  而且，此前在太空塵埃中還未偵測(cè)到剛玉和方鎂石。
• Ruby, the common name for the mineral corundum in its red form, is a precious gemstone.
  紅寶石是對(duì)紅色礦物剛玉的俗稱，它是一種珍貴的寶石。

• corundum更多例句

詞組短語(yǔ)

短語(yǔ)

• corundum brick 剛玉磚
• white corundum 白剛玉
• corundum refractory 剛玉耐火材料
• corundum anorthosite 剛玉斜長(zhǎng)石
• corundum gabbro 剛玉輝長(zhǎng)巖

• corundum更多詞組

英英字典

柯林斯英英字典

• a white, grey, blue, green, red, yellow, or brown mineral, found in metamorphosed shales and limestones, in veins, and in some igneous rocks. It is used as an abrasive and as gemstone the red variety is ruby, the blue is sapphire. Composition: aluminium oxide. Formula: Al2O3. Crystal structure: hexagonal (rhombohedral)

• corundum劍橋字典
• corundum柯林斯字典

專業(yè)釋義

化學(xué)

• 剛玉

  Chromium oxide green with corundum crystal structure has such characteristics as high thermal stability, high painted capacity, chemical corrosion-resisting capacity, etc.
  剛玉晶體結(jié)構(gòu)型氧化鉻有高的著色力、高熱穩(wěn)定性及耐化學(xué)腐蝕等特點(diǎn)。

• 金剛砂

機(jī)械工程

• 剛玉

  For example, the refractory product of SiAlON bonded corundum is used for blast furnace and so on. But As high cost of non-oxide products and the poor basic theory study about it as refractory, the non-oxides refractory application is limited.
  從目前的研究看，非氧化物在耐火材料中的應(yīng)用非常成功，如Sialon結(jié)合剛玉制品作為高爐陶瓷材料等，但是由于非氧化物的生產(chǎn)成本高以及非氧化物及其復(fù)合材料用作耐火材料的基礎(chǔ)理論研究還不夠，限制了非氧化物在耐火材料中的應(yīng)用和轉(zhuǎn)化。

• 剛玉石

地球科學(xué)

• 映紅
• 剛玉
• 紅寶石
• 肉紅色剛玉