The corrosion product was exa - mined by means of SEM, EMP and X - ray diffraction.用SEM, EMP和 X 射线衍射分析腐蚀产物.Objectives To study the method of mark exa mination with moving - light - configuration and to solve practical pr...
用木头和胶粘合的简单构造an insubstantial construction of wood and glue早期的飞行器是木头和胶粘合的脆弱机器.Early aircraft were insubstantial constructions of wood and glue.用水泥粘合的石块构成很好的路面.Stones bound together with cement make good roads....