单词：ballast condition
单词：ballast condition 相关文章
1. invention,发明物，创作品。 eg：The machine was his own invention. 这台机器是他自己发明的。 2. invent,发明,创造。 eg：He invented a new type of stethoscope. 他发明了一种新型听诊器。 3. term,专门名词,术语。
蒋健棠教你听英语广播
In the early 1800s, a French physician named Ren Laennec had a dilemma. He needed to listen to the heart sounds of a young woman with signs of heart disease. But the only method of listening to heart sounds known to Western medicine at the time was s
英语听力文摘 English Digest
Mrs. Brown : (Carrying her baby in her arms) Excuse me, where is the department of paediatrics? Information-Clerk : Go along that corridor and then you will see a sign, which will lead you to the depa
实用英语
During the physical examine, doctors pick up blood from thepatients including that patient's bacteria. To keep infection from spreading,physicians try to always wash their hands between examines. But they don'talways scrub their stethoscopes. To see
2014年Scientific American(三)月
This is Scientific American -Sixty Seconds Science. I'm Sophie Bushiwick. Got a minute? During a physical exam, doctors pick up a lot from their patients, including that patient's bacteria. To keep infections from spreading, physicians try to always
2014年Scientific American(三)月