单词:blockages
n. an obstruction in a pipe or tube
n. the act of blocking
单词:blockages 相关文章
Broadcast: Jan 29, 2003 By Jerilyn Watson This is the VOA Special English Health Report. A new study says drinking beer, wine or other alcoholic drinks several times a week can help prevent heart atta
This is the VOA Special English Health Report. Heparin is a blood-thinning medicine made from pig intestines, which often come from small farms in China. The drug is often used to prevent blockages during kidney dialysis treatment and different opera
This is the VOA Special English Health Report. A coronary stent is a small tube that is used to treat heart patients. The tube is made of A stent is a tube of wire mesh wire mesh. Doctors place it inside an artery that has narrowed. They expand the
This is the VOA Special English Health Report. Today we have the second half of a report about some concerns with the use of drug- treated coronary stents. These are small metal tubes designed to be placed inside arteries in heart patients. The sten
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