心电图可能是最广为应用的监测仪.Perhaps the single most widely used monitoring device is the electrocardiogram.介绍了一种新型提升机智能闸瓦间隙监测仪.Introduces a new kind inspect instrument of hoist brake clearance.所设计的睡眠监测仪能使使用者及时了解自己的睡眠状况.The sleep mon...