breaker arm
常见例句
- The circuit breaker is provided with the following components: a handle arm (1), which can shaft support a fixed part in a rotating way, and operates through a handle (2);
該電路斷路器具有：手柄臂部（1），其可轉動地軸支撐在 固定部上，通過手柄（2）進行操作；
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