| 释义 |
manganeseman‧ga‧nese /ˈmæŋɡəniːz/ noun [uncountable]   manganeseOrigin: 1600-1700 French manganèse, from Italian manganese ‘magnesia, manganese’, from Medieval Latin magnesia; ➔ MAGNESIA - After various experiments, an ingot was cast in August 1913, containing around 13 percent chromium with a little manganese.
- And unlike with manganese nodules, the technology to extract the sulphides is not available.
- But when a manganese plant south of the city closed, those levels dropped dramatically.
- High free lime content in soil restricts access to iron and, to a slightly lesser extent, manganese.
- Iron and manganese bicarbonates can be removed in the cold lime-soda treatment by pre-aeration, followed by precipitation as the insoluble hydroxides.
- Some scientists are concerned about long-term exposure to low levels of manganese oxides from car exhaust fumes.
- When manganese is ingested, the liver determines how much of the metal the body needs.
► Elementsaluminium, nounargon, nounarsenic, nounbarium, nounbase metal, nounbismuth, nouncadmium, nouncaesium, nouncalcium, nouncarbon, nounchlorine, nounchromium, nouncobalt, nouncopper, nounferrous, adjectivegold, noungold, adjectivegolden, adjectivehalogen, nounhydro-, prefixhydrogen, nouniodine, nouniridium, nouniron, nounisotope, nounkrypton, nounlead, nounlithium, nounmagnesium, nounmanganese, nounmercury, nounmolybdenum, nounnickel, nounnitrogen, nounoxygen, nounphosphorus, nounplatinum, nounplutonium, nounpotassium, nounprecious metal, nounradium, nounradon, nounselenium, nounsilicon, nounsilver, nounsilver, adjectivesodium, nounstrontium, nountin, nountin, adjectivetitanium, nountrace element, nountungsten, nounuranium, nounxenon, nounzinc, noun NOUN► oxide· Some scientists are concerned about long-term exposure to low levels of manganese oxides from car exhaust fumes. a grey-white metal that breaks easily and is used to make steel and glass. It is a chemical element: symbol Mn |