单词：Arnold steam sterilizor
单词：Arnold steam sterilizor 相关文章
Cooking Under Pressure When you boil potatoes on the stove top, it can take half an hour to cook them til tender. But, when you boil them in a pressure cooker, instead presto, theyre ready in about five minutes. Whats the difference? What makes press
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AILSA CHANG, HOST: People are again protesting in the streets of St. Louis. They're angry over the death of a black driver at the hands of a white police officer. (SOUNDBITE OF ARCHIVED RECORDING) UNIDENTIFIED PROTESTER: (Chanting) Whose streets? UNI
2017年NPR美国国家公共电台9月
Fish Blind Dates There are plenty of examples in nature of females being attracted to the biggest males. This is especially true for a species of fish called the Atlantic Mollie. The Mollie wants to be as big a fish as possible, because the females s
英语听力文摘 English Digest
Clouds in the Kitchen 厨房飘着的云朵 Fill a kettle with water, then turn on the burner. In a while, your kettle will start belching white billowy stuff into the air. What is this stuff? Steam? Actually, no. Steam is water thats heated to two h
英语听力文摘 English Digest
Boiling Water Under Boiling Clouds You may be surprised to hear that its actually easier to boil water on stormy days than it is when the weather is clear and sunny. Can you guess why? The reason is that the boiling point of water changes slightly in
英语听力文摘 English Digest
Brandy From Wine： How Alcohol Is Turned Into Brandy? 白兰地酿造工艺精湛，特别讲究陈酿时间与勾兑的技艺，其中陈酿时间的长短更是衡量白兰地酒质优劣的重要标准。干邑地区各厂家贮藏在橡木桶中的
英语听力文摘 English Digest