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Connector refers to two or more containers that are interconnected below the liquid level and have equal pressure above the liquid level, with equal liquid level height and the same liquid.

1. The connector contains the same liquid, but the pressure on the liquid level is not equal.

2. The pressure on the liquid surface of the connector is equal, but there are liquids of different densities and materials on both sides of the connector.

Generally speaking, the connector is connected through the interface to realize the function of transmitting current or signal, so the design of the interface is the key part of the successful connection of the connector. The connector interface is divided into contact surface and contact coating.

1. Contact surface: the contact surface of the connector is divided into fixed and separated interfaces. The connector is mainly used to connect the lines to be connected by mechanical means, so that the two interfaces can directly generate metal contact.

2. Contact coating: There is a contact spring on the contact coating of the connector, which is usually made of copper alloy. This spring will play an important role in the process of line bridging.

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