A simple and accurate method is introduced to measure longitudinal shape curve on air track.
介绍一种简单、准确地测量气垫导轨纵向位形曲线的方法。
The shape and size of wood ray is different form that of longitudinal parenchyma;
弦切面上木射线与轴向薄壁组织形状、大小均不相同；
The shape and size of wood ray is different form that of longitudinal parenchyma;
弦切面上木射线与轴向薄壁组织形状、大小均不相同；
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