Based on the conventional paraffin sectioning method, observation was done at the optical level on the dynamics of starch during the ovular development in barley.
运用常规石蜡制片法，在光学水平观察了淀粉在大麦胚珠发育中的消长动态。
Less accuracy, lower speed and easy to be influenced by individuals are characteristic of the traditional optical level, on which the measured data are read by human eyes mainly.
传统光学水准仪主要靠人工目视读数，存在精度低、测量速度慢、易受人为影响等问题。
Less accuracy, lower speed and easy to be influenced by individuals are characteristic of the traditional optical level, on which the measured data are read by human eyes mainly.
传统光学水准仪主要靠人工目视读数，存在精度低、测量速度慢、易受人为影响等问题。
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