每个相开关包括第一和第二静接点。
Each phase switch may include first and second stationary contacts.
第一静接点可以与高压电源的一个相连接。
The first stationary contact may be connected to a phase of a high-voltage power source.
第一静接点可以与高压电源的一个相连接。
The first stationary contact may be connected to a phase of a high-voltage power source.
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