单词：low oil pressure protection device
单词：low oil pressure protection device 相关文章
AGRICULTURE REPORT - February 5, 2002: Soil Conservation Methods By Gary Garriott 04 Feb 2002, 18:39 UTC This is the VOA Special English Agriculture Report. Soil conservation efforts protect soil from
农业与发展
Pre-Listening Vocabulary accustomed to: used to tirelessly: without tiring; for long hours surge barrier: man-made protection built to keep the sea from flooding onto the land valve: a device that opens and shuts; changes the direction of fluid Nethe
趣谈英语
AS IT IS 2014-12-07 Some Asian Countries Gain from Low Oil Prices From VOA Learning English, this is the Economics Report. Today we tell you more about the effects of falling oil prices. Lower demand for oil and too much supply have sent prices to th
2014年VOA慢速英语(十二)月
The study of a solar-powered blood pressure monitor finds it can be an effective tool in places where electricity and even batteries can be in short supply. A study in Africa found the monitors to be affordable and accurate. High blood pressure is a
VOA标准英语2010年(十一)月
The device is a tiny sensor, implanted through a catheter in the heart's pulmonary artery. The procedure takes just seven minutes. The patient passes a wand over his chest, collecting data on heart pressure. That data is sent electronically to the do
VOA标准英语2010年(六)月
The plunge of oil prices has helped reduce fuel costs and made airlines big winners. Cathay Pacific Airways said on Wednesday that its annual profit nearly doubled in 2015. The net profit of Hong Kong's biggest airline jumped 90% from the year before
cctv9英语新闻2016年