The mechanism of the surface colouration of the flame - retardant nylon product and its application are introduced.介绍阻燃尼龙制品表面着色的机理及其应用.The developments of technologies for plastics colouration with colour master - batche...
她一副遭人遗弃和背叛的样子。She had the look of someone deserted and betrayed.她那辆租来的车被发现遗弃在比奇角。Her hired car was found abandoned at Beachy Head.世上最让人难受的莫过于小婴儿遭到遗弃。The saddest thing in the world is a little baby nobody wants....