腺嘌呤:在DNA和RNA中发现的含氮的碱基 ( 6 - 氨基嘌呤 ).Adenine A nitrogenous base ( 6 - amino - purine ) found in DNA and RNA.用增压等离子体熔炼含氮的铬锰奥氏体不锈钢,不锈钢氮含量达0.57%～0.74%.Austenitic chromium manganese stainless steel with 0.57 % ~0.74 % nitrogen...
Whenever recession strikes, a chain reaction is set into motion.只要经济不景气，连锁反应就开始了。The jumper strikes the perfect balance between comfort and smartness.这件套头毛衣又舒服又漂亮。Weather forecasts predict more hot weather, gusty winds a...
因此,这些溶解了的物质就从岩石圈转移到水圈.These dissolved materials thus pass from the lithosphere to the hydrosphere.水圈与岩石圈一起形成地球的表面.The hydrosphere and the lithosphere together form the Earth's surface.地球表面的水都属于水圈的范畴.All the water of...