Abstract The minimal heart rate recorded with 24 - hour dynamic electrocardiagraphic ( DCG ) monitoring in 1070 elderly patients was analysed.回顾并随访分析1070例老年患者24小时动态心电图 ( DCG ) 中的最低心率.Objective To observe the DCG and chan...
I undid the bottom two buttons of my yellow and grey shirt.我解开了自己黄灰相间的衬衫上最下面的两个纽扣。He was a tall, thin man with grey hair.他是个瘦高个，头发灰白。At one point last week shares in the grey market touched 230p.上周，灰市上的股票价格一度高达230便士。...
He telegraphed to me asking me to do something.他给我发来电报，叫我做点什么。Churchill telegraphed an urgent message to Wavell.丘吉尔给韦维尔发了封紧急电报。"Please," he telegraphed, "just leave it alone."“拜托，”他在电报中说，“别管它了。”...
通常把交通网描绘成一系列的节点和节点之间的联络线.The transportation network is described as a series of nodes and connecting links.提出了一种新颖的阻尼 联络线 低频振荡的UPFC两阶段控制方案.This paper proposes a novel two - stage control scheme of UPFC for damping tie - ...