Its rings were discovered by telescope from Earth, but space probes later found that spectacular rings surround some other planets...它的圆环是从地球上用望远镜发现的，但是太空探测器后来又发现了围绕其他一些星球的壮观的圆环。The internal lamellae originate from an in...
A very rigid disease monitoring system is essential in such enterprises.这种企业必须有一种非常严密的疾病监测系统.Perhaps the single most widely used monitoring device is the electrocardiogram.心电图可能是最广为应用的监测仪.Nursing management and monitorin...