One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； November 29th
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Single-choice question: The closing principle of a globe valve is that, through the pressure exerted by the valve stem, the sealing surface of the valve disc comes into close contact with the sealing surface of the valve seat, thereby preventing the flow of the medium. Globe valves are commonly used for ( ) media. A. Gas B. Solid C. Liquid D. All of the above **: C. Liquid
The closing principle of a globe valve is that, through the pressure exerted by the valve stem, the sealing surface of the valve disc comes into close contact with the sealing surface of the valve seat, thereby preventing the flow of the medium. Globe valves are commonly used for (C) types of media. A. Gas B. Solid C. Liquid D. All of the above