单词：buffer exchange
buffer exchange的用法和样例：
例句
- Proteins extraction from the larva of Dendrolimus punctatus with a buffer solution method was studied.采用缓冲液法对马尾松毛虫幼虫中的蛋白质进行提取研究。
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今天我们要学的词儿是buffer。 Buffer是缓冲的意思。Buffer state意思是缓冲国，buffer zone则指缓冲地带。以色列军方为了防止巴勒斯坦激进分子的火箭袭击，打算在加沙地带的边儿上建立一个缓冲
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