| 释义 |
magnesiummag‧ne‧si‧um /mæɡˈniːziəm/ noun [uncountable]   magnesiumOrigin: 1800-1900 Modern Latin magnesia - As mentioned above, to remove magnesium bicarbonate hardness requires twice as much lime as is needed for calcium bicarbonate.
- Calcium permanent hardness requires the more expensive sodium carbonate, whereas magnesium permanent hardness requires both lime and sodium carbonate.
- Drought resulted in decreased root growth and slower breakdown of soil litter, an important source of magnesium for forest trees.
- Experimental phosphate deficiency in humans may induce renal magnesium loss.
- The hypocalcemia and hypomagnesemia respond readily to administration of magnesium salts.
- The important minerals are calcium, zinc, iron, potassium, magnesium, phosphorus and iodine.
- The kidney is the principal regulator of magnesium balance.
- The use of diuretics in those conditions may augment the depletion of magnesium.
► 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► ion· This displaces the calcium and magnesium ions from the resin and restores it to the sodium form.· Typically a magnesium ion diffuses into the channel and gets trapped, unable to go all the way through. ► level· Those suffering from frequent or daily headaches typically have an unusually low magnesium level.· As is the case for calcium, correction of potassium deficiency may not be possible until the serum magnesium level is normalized.· The serum magnesium level usually ranges between 0. 3 and 1. 0 mmol / L when tetany occurs.· However, if hemolysis occurs during blood drawing, falsely elevated plasma magnesium levels may be obtained.· During therapy for magnesium depletion, the physician should frequently check the serum magnesium level, especially in patients with renal insufficiency. a common silver-white metal that burns with a bright white flame. It is a chemical element: symbol Mg |