regulate
/ˈregjuleɪt; `rɛɡjəˌlet/ v[Tn]
1 control or direct (sth) by means of rules and restrictions （以规章制度）控制或管理（某事物）
regulate one's conduct, expenditure, lifestyle 约束行为、 限制消费、 节制生活方式
regulate the traffic 管理交通
The activities of credit companies are regulated by law. 信贷公司的业务受法律制约.
2 adjust (an apparatus, a mechanism, etc) so that it functions as desired; control (speed, pressure, etc) in this way 调校, 校准（仪器、 机械等）; 控制（速度、 压力等）
regulate a clock, radiator, etc 校准时钟、 调节散热器
This valve regulates the flow of water. 这个阀门控制著水的流量.