a person or thing that regulates something, in particular 管理者;调节器;尤指 ■a person or body that supervises a particular industry or business activity 行业(或商业活动)管理者;管理机构 ■a device for controlling the rate of working of machinery or for controlling fluid flow, in particular a handle controlling the supply of steam to the cylinders of a steam engine 调整器,调节器;调节阀 ■a device for adjusting the balance of a clock or watch in order to regulate its speed 快慢针,校准器