- earth acids
- 土酸类
English-Chinese chemistry dictionary (英汉化学大词典). 2013.
English-Chinese chemistry dictionary (英汉化学大词典). 2013.
History of the Earth — For the history of modern humans, see History of the world. Geological time put in a diagram called a geological clock, showing the relative lengths of the eons of the Earth s history The history of the Earth describes the most important events… … Wikipedia
Phosphoric acids and phosphates — There are various kinds of phosphoric acids and phosphates. Of the many phosphorus oxoacids, the phosphoric acids constitute the largest and most diverse group. The simplest phosphoric acid series begins with monophosphoric (orthophosphoric) acid … Wikipedia
Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid — First Publication Discovery of the DNA Double Helix Maclyn McCarty with Francis Crick and James D Watson Willia … Wikipedia
Rare earth element — Rare earth ore, shown with a United States penny for size comparison These rare … Wikipedia
Rare Earth hypothesis — In planetary astronomy and astrobiology, the Rare Earth hypothesis argues that the emergence of complex multicellular life (metazoa) on Earth required an improbable combination of astrophysical and geological events and circumstances. The term… … Wikipedia
History of Earth — The history of Earth covers approximately 4.6 billion years (4,567,000,000 years), from Earth’s formation out of the solar nebula to the present. This article presents a broad overview, summarizing the leading, most current scientific… … Wikipedia
Rare-Earth-Hypothese — Sind Planeten, die Leben ermöglichen wie die Erde, selten? Die Rare Earth Hypothese (dt. Seltene Erde Hypothese) vertritt den Standpunkt, dass beim Auftauchen und der Entwicklung von komplexem Vielzeller Leben (Metazoa) auf der Erde sehr… … Deutsch Wikipedia
alkaline earth metal — noun Any of the elements of group II of the periodic table; they are low density metals that react readily with water to form strongly basic hydroxides, and with many acids to form salts … Wiktionary
Abiogenesis — Primordial soup redirects here. For the board game, see Primordial Soup (board game). Origin of life redirects here. For views on the origins of life outside the natural sciences, see Creation myth. Pre Cambrian stromatolites in the Siyeh… … Wikipedia
evolution — evolutional, adj. evolutionally, adv. /ev euh looh sheuhn/ or, esp. Brit., /ee veuh /, n. 1. any process of formation or growth; development: the evolution of a language; the evolution of the airplane. 2. a product of such development; something… … Universalium
Miller–Urey experiment — The experiment The Miller and Urey experiment[1] (or Urey–Miller experiment)[2] was an experiment that simulated hypothetical conditions thought at the time to be present on the earl … Wikipedia