centrifuge sth
及物用法,宾语是被离心的样品或混合物。
The technician centrifuges the blood sample before testing.
技术员在检测前将血液样本离心。
用离心机分离;离心
centrifuged — past of centrifuge
在离心机中旋转某物,通常是为了分离其组分。;以高速旋转分离液体和固体;使受离心作用
To spin something rapidly in a centrifuge in order to separate its components.
在离心机中旋转某物,通常是为了分离其组分。
To rotate something in a centrifuge, typically in order to separate its constituents.
以高速旋转分离液体和固体
rotate at very high speed in order to separate the liquids from the solids
一般现在时
The lab technician centrifuges the blood sample.
实验室技术员离心血样。
一般过去时
Yesterday, they centrifuged the mixture.
昨天,他们离心了混合物。
现在完成时
She has centrifuged the solution.
她已经离心了溶液。
规则动词
The lab assistant centrifuged the blood sample to separate plasma from cells.
实验室助理将血液样本离心,以分离血浆和细胞。
用法提示:动词过去式,表示完成离心操作。
The factory centrifuges the juice to remove solid particles.
工厂将果汁离心以去除固体颗粒。
用法提示:动词第三人称单数现在时,表示常规操作。
He is centrifuging the mixture to isolate the enzyme.
他正在离心混合物以分离出酶。
用法提示:动词现在分词形式,表示正在进行的动作。
及物用法,宾语是被离心的样品或混合物。
The technician centrifuges the blood sample before testing.
技术员在检测前将血液样本离心。
常与 at high speed 等速度状语连用,说明离心转速。
They centrifuged the mixture at high speed to separate the components.
他们以高速离心该混合物以分离各组分。
被动语态常用于实验步骤,to separate... 说明离心目的。
The solution was centrifuged to separate the solid from the liquid.
该溶液被离心以将固体与液体分离。
grammar · medium
易错句子The sample should be centrifuge at 3,000 rpm.
正确表达The sample should be centrifuged at 3,000 rpm.
情态动词 should 后的被动语态要用 be + 过去分词;centrifuge 的过去分词是 centrifuged,不能用动词原形 centrifuge。
grammar · medium
易错句子Centrifuge the mixture with 3,000 rpm.
正确表达Centrifuge the mixture at 3,000 rpm.
表示转速、温度等参数用介词 at,不用 with;with 通常表示使用的工具或手段,而 3,000 rpm 是转速设定。
centrifuge 是动词,指用离心机分离物质;centrifugal 是形容词,描述离心力或离心方向,不能作谓语表示‘离心处理’。
centrifuge 强调用离心机高速旋转来分离混合物;spin 只表示快速旋转,不涉及分离目的,也不一定使用机器。
centrifuge 特指借助离心机的高速旋转来分离;separate 是通用词,不指明手段,可用于手工、过滤等多种方式。
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