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常见例句
n medical instrument consisting of a magnifying lens and light
An instrument for determining the magnifying power of telescopes, consisting usually of a doubleimage micrometer applied to the eye end of a telescope for measuring accurately the diameter of the image of the object glass there formed
which measurement, compared with the actual diameter of the glass, gives the magnifying power.
An optical instrument for magnifying engravings, photographs, etc., usually having one large lens and two smaller ones.
small magnifying glass (usually set in an eyepiece) used by jewelers and horologists
相关词组
vi.[生](有毒化学物质)产生生物放大作用
vt.缩小( 照片影像、 电子射束等)
[医] 放大的
[化] 放大镜
[医] 放大镜
[化] 放大透镜
[医] 放大口腔镜
[化] 放大率
[医] 放大率