translation.en: It does this through an elaborate and elegant system of checks and balances, stimulators and inhibitors of angiogenesis, such that, when we need a brief burst of blood vessels, the body can do this by releasing stimulators, proteins called angiogenic factors, that act as natural fertilizer, and stimulate new blood vessels to sprout.
translation.zh: 它是通过一个复杂 而优雅的检测与平衡系统来达到此目的的， 诱导和抑制血管生长的两种因子相互作用。 这样当我们需要急速的血管新生， 人体可以通过释放诱导因子， 多种称为血管生成因子的蛋白质 就像天然肥料一样， 来刺激新血管的生长。