Such accuracy was essential to our understanding of the surface chemistry, because the results showed that the distance at the surface was 0.08 A longer than a similar bond inside a silver iodide solid.

• 这样高的精确度对于了解表面的化学性质是很重要的。 因为这些结果表明，在表面上碘、银原子的距离要比碘化银固体内部的碘一银键长0.；08埃。