这是因为阀座垫板表面的圆周单位负荷与阀座面的直径成正比。
This is because the circumferential unit load at the pallet seating surface is directly proportional to the diameter of the seating area.
这是因为阀座垫板表面的圆周单位负荷与阀座面的直径成正比。
This is because the circumferential unit load at the pallet seating surface is directly proportional to the diameter of the seating area.
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