aperture diaphragm造句

• Hence the usual caution not to close down the condenser aperture diaphragm below the suggested 2 / 3 - 4 / 5 of the objective ' s aperture
  通常要求显微镜聚光镜的孔径光栏不应小于物镜孔径的1 / 3 ? 4 / 5 。
• Further , if you close down the aperture diaphragm , you will observe that objectives of higher numerical aperture " grasp " more of these colored spectra than do objectives of lower numerical aperture
  当光栏关小后，数值孔径大的物镜比数值孔径小的物镜产生的光谱状点要多一些。