注：标尺长度代表相似系数。
注：系统树分支点处的数字代表系统树的自展值(1 000次重复)；标尺长度代表遗传距离。
Note: the Numbers on the branch points of the phylogenetic tree represented bootstrap values of the tree (1 000 replicates); Scale length represented genetic distance.
在长标尺长度下，本文的结果与以前的结果一致，但可以精确到更高阶数；在短标尺长度下，本文的解析结果与数值计算符合。
The results in long scalelength case are in agreement with the well-known results but with a higher order in accuracy, and that in short scalelength case are consistent with numerical calculation.
注意，我们添加了两个参数，以便用户可以更改标尺的名称并指定其长度。
Notice that we added a couple of parameters to allow a user to change the name of the ruler and to specify the length.
例如，对于长度是不是对一个有意义的标尺足够大的正数值，或者指定的文件是不是ImageMagick的有效图像文件类型，我们没有进行验证。
For example, we do not validate that length is a positive number big enough for a meaningful ruler or that the file specified is a valid image file type for ImageMagick.
血管口径用手术显微镜的目镜标尺测量，血管长度和分布范围用直尺和分规测量。
Vascular caliber with operating microscope eyepiece scale of measurement, the length and distribution of blood vessels using a ruler and measurement of sub-regulation.
其配套使用的脚架及标尺作了便于携带、方便使用的改进，使脚架、标尺携带长度大为缩短，且能提高测绘精度。
The matched foot rest and the scale are modified to be convenient to carry and use, the portable length of the foot rest and the scale is shortened greatly, and the measurement accuracy is improved.
精确标尺：管身表面有精确的标尺，标注管身调整的安全范围，调节管身长度时不能超stop标志。
Accurate scale: the stick tube is marked with accurate scale that indicates the safe range for adjustment of stick tube. Do not scale out STOP when adjusting the length of stick tube.
精确标尺：管身表面有精确的标尺，标注管身调整的安全范围，调节管身长度时不能超stop标志。
Accurate scale: the stick tube is marked with accurate scale that indicates the safe range for adjustment of stick tube. Do not scale out STOP when adjusting the length of stick tube.
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