tourmaline
英 ['tʊməlɪn] 美 ['tʊrməlɪn]

n.

电气石；

英英释义

tourmaline[ 'tuəməli:n, -lin ]

• n.a mineral that is a complex borosilicate and hydroxide of aluminum containing iron and magnesium and calcium and lithium and sodium; it is usually black but occurs in transparent colored forms that are used as gemstones

双语例句

用作名词(n.)

1. Never use chemicals such as hydrofluoric acid or ammonium fluoride to clean Tourmaline because it can erode the stone.
   从来不使用化学物质如氢氟酸或氟化铵清洁电气石，因为它可以削弱石头。
2. The main anionic finishing agents applied in textiles are tourmaline and natural ores with micro-pores and lanthanon.
   纺织品中应用的负离子整理剂主要为电气石和加稀土元素的天然超微多孔质矿石。

权威例句

Tourmaline group crystals reaction with water
Compositional evolution of tourmaline in lepidolite-subtypepegmatites.
Tourmaline as a petrogenetic indicator mineral: an example from the staurolite-grade metapelites of NW Main.
Metamorphic tourmaline and its petrologic applications. In Boron : mineralogy, petrology and geochemistry
Boron isotopic composition of tourmaline from massive sulfide deposits and tourmalinites
Inclusive chemical characterization of tourmaline; Mossbauer study of Fe valence and site occupancy
An investigation of SIMS matrix effects on H, Li and B ionization in tourmaline
Two-mica and tourmaline leucogranites from the Everest-Makalu region (Nepal-Tibet). Himalayan leucogranite genesis by isobaric heati...
Adsorption characteristics of copper, lead, zinc and cadmium ions by tourmaline
Experimental reactions of amphibolite with boron-bearing aqueous fluids at 200 MPa: implications for tourmaline stability and partia...