歌剧等
发表于 2025-3-23 11:23:37
Lithium-Based Materials, ruthenium or tantalum, in a nitrogen containing atmosphere at a pressure of min. 250 mm Hg with total exclusion of oxygen and water traces, the heat treatment taking place at a temperature between 300°C and the fusion point of lithium nitride.
Terminal
发表于 2025-3-23 13:57:22
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疼死我了
发表于 2025-3-23 19:44:03
Various Compositions Mainly Used as Catalysts or Catalyst Componentsersed state) is accelerated, goethite is transformed into haematite, which then is recrystallised. The treatment takes place at a temperature between 180° and 300°C with the application of an aluminate solution that contains 80 to 300 g/l Na.O and a catalyst with the structural formula;.wherein A =
象形文字
发表于 2025-3-24 01:45:57
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canvass
发表于 2025-3-24 04:02:02
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上釉彩
发表于 2025-3-24 06:34:09
Silicon-Based Intermediateses of the shaped body of hard material, which can be particulate silicium carbide, corundum or bauxite, while the binder consists of for example calcium silicate or of a glass of calcium silicate with the following composition: 69 w.% SiO.; 25 w.% CaO+HgO; 3 w.% of Al.O.; 3 w.% of an alkali or iron
Ovulation
发表于 2025-3-24 11:55:27
Intermediates mainly based on zirconium or zirconium-containing compositionsntent being higher than that of SnO., the content of the latter surpassing that of SiO.. More particularly the product consists of baddeleyite, corundum and a vitrified phase, which fills up the interstices between the crystals of baddeleyite and corundum. The refractory material displays high corro
晚间
发表于 2025-3-24 16:27:33
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gene-therapy
发表于 2025-3-24 22:40:06
Intermediates mainly containing molybdenum, titanium and tungsten compoundssts of 10–62 w.%. of molybdenum, while the rest contains tungsten, carbon and impurities and corresponds to the formula:.It is suitable for the production of, for example, filters for welding rods, hard facing deposits and the like.
时代错误
发表于 2025-3-25 00:18:11
Intermediates mainly consisting of lithium and yttrium 0.4 w.%. carbon, 1.0–20.0 w.%. Y.O. and 76.0–98.6 w.%. Si.N., furthermore 0.05–3.00 w.%. Li.O (referring to the total amount of Si.N., Y.O. and Li.O). The characteristics of the composition do not deteriorate, neither at room temperature, nor at sintering temperature. The components are applied in