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1.The microscope is used to examine very small objects.
显微镜用来观察非常小的对象。
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2. The scientist used a micrometer eyepiece to measure the thickness of the sample.
科学家使用一个微米目镜来测量样品的厚度。
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3. The doctor used a micrometer eyepiece to check the patient's blood pressure.
医生使用一个微米目镜来检查患者的血压。