激素替代治疗非常重要，应该及早开始。Hormone replacement therapy is very important and should be instituted early.激素植入物被用作生长辅助剂.Hormone implants are used as growth boosters.分泌的激素进入到血液中.Hormones are secreted into the bloodstream....
金属表面的空气燃料混合气层为较冷的金属所激冷.The layers of air - fuel mixture next to the metal surfaces are chilled by the cooler metal.从加工性能上说,铬钼激冷铸铁比镍铬激冷铸铁加工性能好.From the machinability, the Mo cold cast iron is liable machine.研究了天然无定形石墨砂热物理...
据悉海豚有时会救溺水的游泳者。Dolphins have sometimes been known to save drowning swimmers.即使最强壮的游泳者也会无助地被交叉水流冲走。Cross-currents can sweep the strongest swimmer helplessly away.游泳者从湖水中浮出来。The swimmer emerged from the lake....