磨坊主都往自己磨里注水.Every miller draws water to his own mill.注水驱油是油田中后期的重要采油手段.Water flooding is the main method to enhance oil recovery.油田注水系统是油田地面工程的五大系统之一.Water injection system is one of the five systems in oilfield....
ITQ - 27 is stable to calcination in air , absorbs hydrocarbons , and is catalytically active for hydrocarbon conversion.ITQ-27对于在空气中煅烧而言是稳定的, 可以吸附烃类,以及对烃转化具有催化活性.Any of three gaseous isomeric ethylene hydrocarbons , C 4...
Outside, a bitter east wind was accompanied by flurries of snow.外面，刺骨的东风伴着阵阵小雪。A gust of wind , and snow flurries, accompanied the pilots.阵朔风和雪片随着驾驶员一涌而进.A raw wind was blowing, and the first flurries of snow were whiten...