focusing crystals meaning in Chinese

一至三块光剑水晶

Focus crystals in their heavy forearm units enable zealots to channel their strength of will into blades of pure psionic energy - their primary melee weapons
狂热者聚集力量到自己的前臂，使其产生完全由魔法构成的刀刃，这就是他们的主要武器。
The blade ' s color depends on the nature of the jewel it springs from , and while its length is fixed in the case of a single jewel lightsaber , lightsabers equipped with multiple crystals can have their length varied by rotating a knob that allows the focusing crystal activator to subtly modify the refraction pattern between the gems
剑刃的颜色取决于源晶体的性质，尽管单晶体光剑的剑刃长度是固定的，装备有复合水晶的光剑可以通过旋动一个旋钮来移动聚焦晶体，来精确地调整晶体间的折射方式，从而随意改变刃长。