心脏有瓣膜控制血液流进流出.The heart has valves to let blood flow in and out of it.二尖瓣狭窄的病变是在心肌而不是在瓣膜.The abnormality mitral stenosis was in myocardium, not in the valve.他们是那些最不适于作瓣膜切开术的患者.They are patients in whom the valvulotomy wa...
“时”的英语可以翻译为：time，times，fixed time，days（时常；经常） now and then，occasionally，from time to time（叠用， 表示不同的现象或事情交替发生） now ... now ...，sometimes ... sometimes ... ...
If we had been careful such a calamity would not have befallen us.假如我们谨慎的话,这种灾难不会降临到我们的头上.They supposed that some calamity had befallen the Governor.他们心想这位先生一定遇到了什么无妄之灾.An accident has befallen him.一件不测的事已临到他....
B from the family of boron have autocatalytic effect.硼族元素对焦炭反应性起负催化作用.The NO oxidation is autocatalytic.NO氧化是自动催化的.The reactions are autocatalytic and quickly send the cell into thermal runaway where It'self destruc...
含柯石英的苏鲁—大别榴辉岩是高压 - 超高压变质带的产物.The Sulu - Dabie eclogite, which contains cosine, is the product of high - ultra high pressure metamorphism.超高压榴辉岩在地幔对流、壳-幔物质循环和俯冲带动力学起着重要作用.Eclogite plays an important role in mantle convect...