What are the ten pictures of the words next to the golden lettering?
Iron sentence:
1, limonite sentence: At present, it has been found that the special minerals with practical application value are pyrite, magnetite, pyrrhotite and limonite, and the substances they form are H2S from oil and gas reservoirs and ferrous iron in sedimentary strata.
Description: One of the major iron mines. Brown or yellowish brown, grape-like, block, etc.
2. Ductile Iron Sentence: For a long time, chemical plants and petrochemical enterprises especially like to use ductile iron because of its good anti-collision treatment performance and thermophysical properties.
Explanation: A kind of cast iron, in which a certain amount of magnesium or magnesium alloy is added to molten iron, the flake graphite in the structure becomes spherical, thus greatly increasing its strength, toughness and ductility. Mainly used to replace steel castings of heavy machinery and agricultural machinery.
3. Ferrite sentence: Similarly, to simulate some old and new epoxy resin coatings filled with ferrite, a 4 mm thick carbon fiber epoxy resin composite matrix is used to simulate the aircraft skin.
Description: A new type of magnetic material sintered from oxides. Because of low eddy current loss and simple process, it is widely used in radio technology. Also called magnetic porcelain.
4. Iron Ring Sentence: daniel craig plays 1875 Arizona gunman Zach Lonnigan, who wakes up in the desert with a mysterious iron ring on his wrist and his memory disappears.
Description: The toy is a ring made of thin iron bars with a diameter of about 50 cm. Push forward with a special iron hook when playing: roll ~.
5. Pyrite sentence: Under the selected technological conditions, the gold enriched in calcium carbonate deposits and some gold associated with pyrite and galena are exposed, which is beneficial to the recovery of gold.
Description: Mineral, composed of iron disulfide, is golden yellow with high hardness and unilateral conductivity. Sulfur dioxide can be released when heated at high temperature, which is an important raw material for extracting sulfur. Chinese medicine is called native copper.
6. Magnetite sentence: Kaiser? Thomas? The NASA research team led by KathieThomas-Keprta found discoid carbonate and tiny magnetite crystals in this meteorite.
Description: One of the main iron ores, the composition is ferroferric oxide, which is gray-black and strongly magnetic.
7. Hematite sentence: Because of the size. Emphasis is placed on ultra-large actuators, and hematite crystal bars are beautified with jets. This black pleated sheepskin actuator is fashionable, young and bold. Carry it with attitude.
Description: One of the main iron ores, the composition is iron oxide, which is earthy red and magnetic. Besides ironmaking, it is also used as a grinding material for pigments and lenses.
8. Iron core sentence: In order to accurately locate the multi-point grounding fault of transformer iron core, two detection methods, high frequency method and traveling wave method, are proposed and analyzed and compared in detail.
Make up your mind: ~ Nong | This time, he made up his mind.
9. Iron core sentence: In order to accurately locate the multi-point grounding fault of transformer iron core, two detection methods, high frequency method and traveling wave method, are proposed and analyzed and compared in detail.
Make up your mind: ~ Nong | This time, he made up his mind.
10, cycad sentence: This shows that Ginkgo biloba and cycad plants may have adopted different strategies when adapting to the environment in the process of evolution. They may not have direct genetic relationship, but they have developed in parallel on their respective evolutionary routes.
Description: Evergreen tree, with leaves clustered at the top of stem, large pinnate compound leaves, strip-shaped glossy leaflets, terminal flowers, dioecious, male flowers conical, female flowers with brown fluff and spherical seeds. It grows slowly in warm areas. Commonly known as cycad.