lesser circulation的用法和样例：
例句
- The blood vessels are in general dilated, although the cornary and pulmonary circulation may show the opposite response.
血管一般是扩张的，但冠状循环和肺循环的血管则可出现收缩。 - Fluid is transferred cephalad in microgravity and simulated microgravity,and the pulmonary circulation is the first to be affected.
微重力或模拟微重力时体液头向转移，首先波及肺循环。
