These fires create convection funnels, and throw a lot of particles into the upper atmosphere.这些火焰造成了对流漏斗，把许多微粒抛向上层大气。Convection can be of two types: natural convection and forced convection.对流可分为两类, 即 自然对流和强制对流.One of t...
These fires create convection funnels, and throw a lot of particles into the upper atmosphere.这些火焰造成了对流漏斗，把许多微粒抛向上层大气。Convection can be of two types: natural convection and forced convection.对流可分为两类, 即 自然对流和强制对流.Conducti...
A Delta II rocket was launched from Cape Canaveral early this morning.今天一早，一枚“德尔塔”Ⅱ型火箭在卡纳维拉尔角发射升空。The armed forces have launched offensives to recapture lost ground.这支武装部队已发动进攻要夺回失去的阵地。The army now appears to have launch...
Furrow flexure and ancient heat flux on Ganymede.在Ganymede上皱纹弯曲和远古热通量.So too might the Jovian moons Callisto and Ganymede.木星的卫星木卫四和木卫三也可能有水.In their outward order from Jupiter, these moons are Io, Europa, Ganymede and Ca...