hemal system的用法和樣例：
例句
- The pancreatic vasculature is one of the very important yet most complicated components of the splanchnic vascular system of the upper abdomen.
胰腺的血管是上腹部?jì)扰K血管系統非常重要而又復雜的組成部分之一。 - The roach vascular system is much less extensive and lacks tiny capillaries, Kunkel notes, so pressure can be significantly lower.
康凱爾指出，蟑螂的血管系統規模小很多，也沒(méi)有微血管，所需要的血壓相對低得多。
