如将显微镜载物台旋转，便能从纤维横断面中看到第三层胞壁。
A third layer of transverse cellulose strands is indicated as the microscope stage is rotated.
如将显微镜载物台旋转，便能从纤维横断面中看到第三层胞壁。
A third layer transverse cellulose strands is indicated as the microscope stage is rotated.
如将显微镜载物台旋转，便能从纤维横断面中看到第三层胞壁。
A third layer transverse cellulose strands is indicated as the microscope stage is rotated.
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