该主壳体由该主成形壳件的成形单元切割形成，该主成形壳件的连接管部连接该成形单元。
The main shell is formed by cutting the shaping unit of the main shaping shell, and the connecting pipe of the main shaping shell is connected with the shaping unit.
该主壳体由该主成形壳件的成形单元切割形成，该主成形壳件的连接管部连接该成形单元。
The main shell is formed by cutting the shaping unit of the main shaping shell, and the connecting pipe of the main shaping shell is connected with the shaping unit.
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