1·The valve failing closed could be due to an internal blockage or failure.
阀门无法关闭的原因可能是内部堵塞或故障。
2·MECHANICS checking for a blockage in a car's fuel pipes know to floor the accelerator, for a splutter then indicates a problem that may not show up when the engine is idling.
一辆汽车堵塞的燃料管道，会阻碍加速器的运行，对它进行结构检查，在杂乱仓促的运转中也许能显示出发动机空闲时不会表现的问题。
3·The reigning theory was that part of her tumor had broken off and either ruptured her pulmonary artery or created a huge blockage in her heart.
卫冕理论说若她的肿瘤部分中断的，要么她的肺血管破裂，或造成了她的心脏的巨大的堵塞。
4·Even a cut in official rates, as is expected in America later this month, may not clear the blockage.
甚至是下调官方基准利率也不能清除堵塞，本月下旬美国有望采取。
5·The blockage in the arteries means that the blood flow is reduced.
动脉中的堵塞意味着血液流动被减少了。