corundum

1 Known for their red color, rubies are part of the corundum family of gemstones, which are gems that are compact and dense, according to the International Gem Society.

2 The effect of spinning pack of corundum filter plate on spinning for Nylon 66 was studied.

探讨了纺丝组件刚玉过滤板对尼龙66纺丝的影响。

3 Rubies, valued as precious gems, are the mineral corundum in its red form.

作为一种珍贵的宝石，红宝石是一种红色的矿物刚玉。

4 Corundum brick and chrome-corundum brick are the key refractories for gasifier and reaction furnace in petrochemical industry.

刚玉砖及铬刚玉砖是石化行业造气炉和反应炉的关键耐火衬里材料。

5 When the radiation is shown by yellow corundum, the stone is called star-topaz.

6 Another "smell" which is extremely mysterious is that produced by two quartz-pebbles, or even two rock-crystals, or two pebbles of flint or of corundum, when rubbed one against the other.

7 If the quartz can’t scratch the specimen, it might be beryl or corundum, which are harder than quartz.

8 A sapphire is a corundum crystal of any color but red, although many people consider a true sapphire to be blue.

9 The domed disc is a pink synthetic corundum in the same vein as ruby or sapphire, and the result is a soft, translucent pink that shifts not only depending on viewing angle and lighting.

10 Ruby, the common name for the mineral corundum in its red form, is a precious gemstone.

红宝石是对红色矿物刚玉的俗称，它是一种珍贵的宝石。

11 Alumina is the principal constituent of bauxite, the ore of aluminum, and of the natural abrasives, emery and corundum.

12 When it remotely suggests emerald it is called "Oriental" emerald to denote that it is a corundum gem.

13 Some of these minerals may very well be our very own corundum, with its trace elements.

14 As found native it is called corundum, when crystallized ruby or sapphire, when amorphous emery.

15 It was mined in Sri Lanka's central district of Ratnapura and is a classified as a natural corundum un-heated blue star sapphire.

16 Production technology of rebonded corundum brick made from sintered alumina and tabular alumina has been introduced.

介绍了以烧结刚玉和板状刚玉为原料试制再结合刚玉砖的生产工艺.

17 It introduces process control point of chrome corundum permeable brick and its application in smelting ferroalloys.

介绍了铬刚玉透气砖的生产控制要点和在铁合金精炼中的应用方法.

18 Used for corundum bricks , mullite bricks , silicate bricks masonry in blast furnaces , hot air stoves .

用于高炉、热风炉砌筑刚玉砖、莫来石砖、硅线石砖、低蠕变高铝砖。

19 The utility model relates to a corundum sieve tube used in the field of oil field and oil well production.

本实用新型涉及油田油井开采领域中用到的一种刚玉筛管。

20 This crystalline aluminum mineral is called corundum, and people have been wearing it with pride for thousands of years.

1 刚石

diamond spar

2 金刚砂

emery Carborundum carborundum abrasive

3 刚玉

adamant white sapphire adamantine spar emery