The slowness is dissolve in hydrofluoric acid and hot oil ofvitriols.缓慢溶于氢氟酸和热浓硫酸.Material illustrating detailed structure of graptolites has been etched from limestone by means of hydrofluoric acid.表明笔石详细构造的物质是利用氢氟酸从石灰岩...
Material illustrating detailed structure of graptolites has been etched from limestone by means of hydrofluoric acid.表明笔石详细构造的物质是利用氢氟酸从石灰岩中侵蚀出来.The slowness is dissolve in hydrofluoric acid and hot oil ofvitriols.缓慢溶于氢氟酸...
它们有哑铜的，古铜的和镀银的。They are available in polished brass, antique brass or silver-plate.这些刀叉并不像看起来那样值钱, 它们都是镀银的.The knives and forks are not as valuable as they look; they've only been plated with silver.实际上, 两块半镀银的或镀铝的光...