Glass Windows and doors and hardware fitting: Each kind of material quality, different type combination Windows and doors, hardware fitting and so on.

玻璃门窗和五金配件：各种材质、不同类型的组合门窗、五金配件等。

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Contactor can be easily retro-fitting auxiliary contact group, and appropriate combination of thermal relay to protect the load that may have been circuits.

接触器还可方便地加装辅助触头组，和适当的热继电器组合，保护可能发生过负载的电路之用。

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Use curved surface fitting method, to analyze the rule of main deck's deformation in oblique wave; present method of sub value and combination to analyze torsion deformation.

利用曲面拟合的方法，分析斜浪中甲板的变形规律，提出了扭转变形分析的分量组合方法。

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