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Definisi

1. lock: a segment of a canal or other waterway enclosed by gates, used for raising and lowering boats between levels
2. A gate of water mechanism.
3. a portal which may be opened or closed to allow or prevent the passage of water through a man-made channel; sluice gate
4. sluice
5. a gate, or valve, by which a flow of water is permitted, prevented, or regulated; water gate
6. an adjustable gate or valve used to control the flow of water through a sluice; floodgate

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