15. The main mineral phases include goethite, quartz, illite, montmorillonite and small amounts of calcite, in the form of slight crystallization.
析出物的主要矿物相为针铁矿、石英、伊利石、蒙脱石和微量方解石,呈弱结晶状态。
youdao
16. The study shows that from the bottom to the top of laterite weathering crust profile, illite and kaolin decrease, gibbsite, goethite and hematite increase.
研究表明,红土风化壳剖面自下而上,伊利石、高岭石减少,三水铝石、针铁矿、赤铁矿增多。
youdao
17. The amount of Al-substitution in goethite in P horizon clays of percogenic paddy soil was higher than that of other diagnostic horizon clays of paddy soil.
渗育型水稻土P层的赤铁矿含量比相应的母土低,其针铁矿铝替代量较其它水型的水稻土高。
youdao
18. Major aluminum-bearing carrier minerals include independent gibbsite enwrapped by goethite as fine granules, and others exist in goethite in the form of isomorphism.
铝的载体矿物主要是以微细颗粒集合体被针铁矿包裹的三水铝石和以类质同象存在于针铁矿中的铝;
youdao
19. Adsorption and desorption of fluorine at the surface of goethite is an important mechanism for fluorine migration and enrichment in the soil water system of the karst areas.
土层中针铁矿表面对氟的专性吸附及其解吸作用是岩溶地区土水系统中氟迁移和富集的重要机理。
youdao
20. Ore minerals are composed of psilomelane, pyrolusite, braunite, rhodochrosite and manganocalcite and gangue minerals are composed of magnetite, goethite and pyrite and so on.
矿石矿物主要有硬锰矿、软锰矿、褐锰矿、菱锰矿、钙菱锰矿等。脉石矿物主要有磁铁矿、针铁矿、黄铁矿等。
youdao
21. The results showed that the main crystalline iron oxide minerals in the clay of red earth was goethite and hematite, but only goethite was detected in the clay of yellow soil.
结果表明,黄壤与红壤粘粒中氧化铁矿物组成主要差别在于红壤既含针铁矿又含赤铁矿,而黄壤只含针铁矿。
youdao
22. Mineralogy characteristics and separation technologies of aluminum and iron of high-aluminum iron ores were investigated. The results show that iron minerals are hematite and goethite mainly.
研究高铝褐铁矿石的工艺矿物学特性及其对铝铁分离的影响。研究结果表明,铁矿物主要为针铁矿和赤铁矿;
youdao
23. The discovery of goethite shows that this mineral has been used as pigments as early as in the Spring and Autumn period. This is the earliest example that goethite was used as yellow pigments.
针铁矿的发现表明春秋时期该矿物己被用作黄色颜料,这是目前己知的针铁矿作为黄颜料使用的最早的实例。
youdao
24. The discovery of goethite shows that this mineral has been used as pigments as early as in the Spring and Autumn period. This is the earliest example that goethite was used as yellow pigments.
针铁矿的发现表明春秋时期该矿物己被用作黄色颜料,这是目前己知的针铁矿作为黄颜料使用的最早的实例。
youdao
用作名词 (n.)
Goethite and Hematite inclusions give the gem a red or grey glitter or sheen. 针铁矿和赤铁矿内含物会产生红或灰色光。
The absorption reactions of goethite and its precursors on arsenite were studied. 观察了针铁矿及其前体对溶液中亚砷酸根离子的吸附过程和吸附性能。