It features a stepped tread pattern that includes a large rectangular lug as the base with smaller square pins mounted on top.

它具有一个加强胎面花纹，其中包括一个大型长方形耳为基础的小广场上安装针顶端。

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Metal rollers impregnated with a raised rubber pattern are mounted on a single machine.

与模式提出了橡胶浸渍金属辊安装在一台机器。

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After building the hull mold frame, the pattern model is mounted securely within exposing only one fourth of the hull.

建设后，船体的模具框架，模式模型，是采取安全与揭露，只有四分之一的船体。

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