“微小的”用英语怎么说？

由于它们是手工制作的，彼此都会有些微小的差异。As they're handmade, each one varies slightly.该刻度盘能显示很微小的压力变化。The dial records very slight variations in pressure.哪怕是微小的成功也会促使我做出更大的努力.Even a small success would spur me on to greater effort....