英文字典中文字典Word104.com



中文字典辭典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z   


安裝中文字典英文字典辭典工具!

安裝中文字典英文字典辭典工具!








  • Urea | Definition, Formula, Production, Uses, Facts | Britannica
    Urea, the diamide of carbonic acid It has important uses as a fertilizer and feed supplement, as well as a starting material for the manufacture of plastics and drugs It is a colorless, crystalline substance that melts at 132 7 degrees C (271 degrees F) and decomposes before boiling
  • What Is Urea Made Of? How Is Urea Produced? - Science ABC
    Urea is a non-toxic, water-soluble compound (CO (NH2)2) produced in the liver via the Urea Cycle, where the body converts toxic ammonia into a safe waste form
  • Urea | NH2CONH2 | CID 1176 - PubChem
    Urea is a natural product of nitrogen and protein metabolism; and it is found in urine and animal waste Vapor-phase urea will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals; the half-life for this reaction in air is estimated to be 9 6 hrs
  • What Exactly Is Urea and How Is It Made in the Body?
    Urea, also known chemically as carbamide, is a simple organic compound central to human biology as the body’s primary method for safely eliminating excess nitrogen This colorless, odorless, and highly water-soluble compound is the major nitrogen-containing substance found in the urine of mammals
  • Urea - American Chemical Society
    Urea, also known as carbamide, is a safe, useful compound with a significant history It is a naturally occurring molecule that is produced by protein metabolism and found abundantly in mammalian urine
  • Urea - New World Encyclopedia
    The urea is formed in the livers of mammals in a cyclic pathway, from the break down of ammonia, (a metabolic waste), which was initially named the Krebs-Henseleit cycle after its discoverers, and later became known simply as the urea cycle
  • Urea | Formula, Properties Application
    Explore the fascinating world of urea, from its discovery to its applications in agriculture, industry, and healthcare
  • Understanding Urea Production: Processes, Inputs, and the Future of . . .
    Urea, a key nitrogen fertilizer, is produced by reacting ammonia and carbon dioxide under high pressure and temperature The efficient two-step process yields over 95%, with applications spanning agriculture and industry, highlighting its economic and environmental significance


















中文字典-英文字典  2005-2009

|中文姓名英譯,姓名翻譯 |简体中文英文字典