Difficulties arise in attempting to understand the mechanisms of antiarrhythmic drug action for several reasons.在企图了解抗心律失常药物作用的机制中产生某些困难是有一些原因的.Objective To assess the antiarrhythmic effect of implantable Cardioverter de...
A massive rock fall trapped the men as they operated a tunnelling machine.这些工人在操作隧道挖掘机时被大量的落石困住了。The workers were tunnelling through solid rock.工人们正在坚石中挖掘一条通道.The prisoners had escaped by tunnelling.犯人挖地道逃跑了....