瓶底（Bottom-of-the-Bottle）流动相过滤头设计独特，顶部有一段不锈钢stem，可连接内径为1/16 英寸的管子。10μm孔径，适合用于10mL/min以内的流速。
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Place the pop bottle in the bottom of your kitchen sink.
把汽水瓶放在家用水槽底部。
"I know," said Tom, "but I was thirsty, and as my half was at the bottom of the bottle I had to drink through yours to get to it."
我知道，"汤姆说，"但是我渴了，我的那半瓶在瓶子底部，所以我得喝光你的，才能喝到我的。"
To make it clearer to you, let us have a look at the bottom of the bottle.
为使它对您更清楚起见，我们来看看这瓶底。
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