该节点可称为主要辅助节点。

This node can be called as principal secondary.

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该辅助节点可以是hdr或rs辅助类型。

The secondary node can either be an HDR or RS secondary type.

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可能会有多个辅助rac节点。

There can be multiple secondary RAC nodes.

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用节点组合板组成各种形状辅助结构梁。

Use Channel and Fittings can do many variety structure.

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用节点组合板组成各种形状辅助结构梁。

Use Channel and Fittings can do many variety structure.

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