单词：alumina titanate ceramica
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Once A Regional Stabilizer, Saudi Arabia Becomes A Disrupter MARY LOUISE KELLY, HOST: For generations, Saudi Arabia's monarchs have based their rule on tradition and caution and, above all, stability. Crown Prince Mohammed bin Salman represents a bre
2018年NPR美国国家公共电台10月
1975 、 双圆头锤 blockinghammer 1976 、 双极面结型晶体管 bipolarjunctiontransistor 1977 、 双线规；榫规 mortisegauge 1978 、 双头砂轮机 double-endedgrinder 1979 、 双头螺栓
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Food prices continue to rise, threatening to push more and more people into poverty and hunger. A new report from the UN food agency says one of the best ways to boost agricultural productivity worldwide would be to remove the barriers women farmers
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This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 Traditional fisheries may no longer be the world's most important provider of fish. A new United Nations report shows that fish farming or aquacultur
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Hungrier Planet Strains Water Supply Thirsty food Water. As the population grows, there are more and more people at the tap every day. But when it comes to the worlds demand for water, drinking it is just the beginning Food - and agriculture in parti
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Global Warming Might Threaten Water Supply Stanford University climate expert Noah Diffenbaugh led the study, which compares snowpack conditions across the northern hemisphere in the late 20th century with climate model projections for the next one h
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