Those crystalplanes should be selected such that their Miller indices are lower and the planes have high symmetry.
选择这样几组晶面，使它们的密勒指数较低且具有对称性。
2
A set of ideal ECP maps for different cubic crystals was theoretically delineated by using the sterographical projection method of crystalplanes.
采用晶面的极射赤面投影方法，从理论上绘制了一套不同立方晶体的理论电子通道图。
3
They took a crystal, this is a single crystal of nickel that has regular planes of atoms, and those planes are spaced on the order of an angstrom or less apart, and they irradiated this with x-rays.