Convenience sluice gate rapidly, energy, fluid resistance small, you can always operate.

启闭方便迅速 、 省力 、 流体阻力小, 可以经常操作.

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The electric wedge type gate valve has small fluid resistance and light medium erosion.

电动楔式闸阀是一种做直线运动的阀门.该阀流体阻力小,密封面受介质的冲刷和侵蚀小.

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Fluid resistance small, the drag coefficient and the length of the tube with the same paragraph.

流体阻力小, 其阻力系数与同长度的管段相等.

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