The purge screw should be in the open position and shielded from direct heat when soldering.

排气螺丝应该位于开启位置，并且在焊接时要有遮盖以免被火源烧到。

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The purge screw should be in the open position and shielded from direct heat when soldering.

排气螺丝应该位于开启位置，并且在焊接时要有遮盖以免被火源烧到。

youdao