The solar system is minuscular in the immensity of the universe.在无限的宇宙中太阳系是极其微小的。He discovered some pinpoint particles in the liquid.他在液体中发现了一些极其微小的细粒。Even an infinitesimal change in temperature will be recorded by the equipment.即使气温变化极其微小，这个仪器也能记录下来。