可以从标尺“拖出”这些线，作为在工作区上放置组件时的垂直或水平参考线。

These can be "dragged out" of rulers, providing a vertical or horizontal line to reference as you place components on the workspace.

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用于添加一个水平坐标尺寸。将一个端点连接到坐标原点，一个端点连接到部件。

Use to add a single horizontal ordinate dimension. Attach one endpoint to ordinate origin and one to the feature.

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近年来，自然保护区建设和管理水平成为衡量一个国家文明程度与环境健康水平的重要标尺之一。

In recent years, construction and management levels of nature reserves become one of the important standards of weighing a national civilization degree and the environmental health level.

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用于添加多达4个水平坐标尺寸。将一个端点连接到基准线，一个端点连接到第一个部件。

Use to add up to 4 horizontal ordinate dimensions. Attach one endpoint to baseline and one to first feature.

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用于添加一个水平坐标尺寸。

Use to add a single horizontal ordinate dimension.

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用于添加多达4个水平坐标尺寸。

Use to add up to 4 horizontal ordinate dimensions.

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用于添加一个水平坐标尺寸。

Use to add a single vertical ordinate dimension.

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用于添加多达4个水平坐标尺寸。

Use to add up to 4 vertical ordinate dimensions.

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用于添加一个水平坐标尺寸。 将一个端点连接到坐标原点，一个端点连接到部件。

The point at which a line, or the curve in which a surface, intersects a coordinate plane.

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用于添加一个水平坐标尺寸。 将一个端点连接到坐标原点，一个端点连接到部件。

The point at which a line, or the curve in which a surface, intersects a coordinate plane.

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