单词：non-protein nitrogen(NPN)
单词：non-protein nitrogen(NPN) 相关文章
Looking to lead a more eco-friendly lifestyle? You could start by cutting back on meat. A new nitrogen footprint calculator shows you the impact your diet has on the environment. You may have heard of the concept of a carbon footprint. That's how muc
VOA标准英语2011年(三月)
SCIENCE REPORT – January 23, 2002: Aging Protein By Jerilyn Watson This is the VOA Special English Science Report. A new study suggests that a protein that protects animals from cancer early in life
科技之光
HEALTH REPORT-Heart Disease and C-Reactive Protein By Cynthia Kirk Broadcast: Wednesday, January 19, 2005 I'm Gwen Outen with the VOA Special English Health Report. American researchers have found evi
健康与经济
C-reactive protein is an indication of inflammation in the body, and, at high levels, is considered an early sign of future heart disease. It's a risk factor in a similar way that elevated cholesterol is a risk factor for heart disease, says Asheley
VOA标准英语2010年(三月)
Low－salt，low－protein diet can prevent kidney stonesA diet low in salt and meat can dramatically reduce the risk of kidney stones，according to an Italian study that could spell the end for the low－calcium diet that doctors have been recommen
阅读空间
LOS ANGELES, March 6 (Xinhua) -- U.S. researchers have successfully used certain microbes to produce biofuels(生物燃料), opening a door to developing cheaper green energy. The discovery was made by researchers at the University of California, Los
英语新闻