What is the working principle and function of the manual valve, and what is its use in scientific research or teaching?
Manual valves have many functions. For example, the faucet is a manual valve, and its actual function is to close and close.
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What is the working principle and function of the manual valve, and what is its use in scientific research or teaching?
Author:Source:Update time:2024-11-04 14:53:13 Read:
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