大循环的英文：
general circulation
greater circulation
major cycle
systemic circulation

general是什么意思：
adj. 普遍的，全体的；正常的；大致的，笼统的
n. 将军

generalized ensemble
广义系综

general average
共同海损

The steam can generate electricity by turning an electric generator.
蒸汽可以转动发电机发电。

circulation是什么意思：
n. 血液循环；流通，传播；发行量

Have you been circulated with details of the conference?
你收到会议详情的通知了吗？

circulate counterfeit coins
使伪造的钱币流通

This magazine has a large circulation.
这本杂志发行量很大。

greater是什么意思：
adj. [great]的形容词比较级

Here was a greater fertility and greater abandonment.
这里更加丰饶，更加放纵。

The old administration system is under greater and greater challenge.
旧的行政管理体制正受到越来越大的挑战。

The greater the mass of a body, the greater is its inertia.
物体的质量越大，它的惯性就越大。