A method of producing crystal sodium fluoride with sodium fluosilicate and sodium carbonate is introduced.本文介绍了以氟硅酸钠、纯碱为原料生产晶体氟化钠的工艺,并对操作条件作了详细的说明.Compositions, crystallization mechanisms and properties of the fluosilica...
Llewelyn was mounting the stairs up into the keep.卢埃林登上台阶，走进城堡主楼。As I see it, Llewelyn has three choices open to him.据我看，卢埃林有3个选择。Llewelyn's stallion shied as the wind sent sparks flying.风一吹来，火星四溅，卢埃林的种马惊跳起来。...
An abrupt change of location can be disorienting.地点的突然改变会令人迷失方向。A sharp blow to the head can be disorienting.对脑部的重击会导致昏迷.It is hard to exaggerate the disorienting pace of change in that period.再怎么夸大那个年代的动荡都不为过分....