使PPI呈现器上的年夜片扇形面积洗白。
This would show on the PPI scope as a large pie-slice of wash-out.
小镇面积47平方公里，呈扇形铺开，在湖山之间犹如一颗珍珠熠熠生辉。
Covering an area of 47 square kilometers, the little fan-shaped town glimmers like a bright pearl in the landscape of lakes and mountains.
与扇形法计算的效率相比，等周长法的结果偏高，等面积法的结果偏低。
As compared to the sector method, the equal-area method yields a higher fin efficiency while the equal-perimeter method gives a lower fin efficiency.
直管排污管的排污阻力小，旋 流喷嘴、扇形喷嘴的冲洗面积大、水压高、用水量小。
The straight blow-off pipe has less blow-off resistance, the flushing area of the swirl nozzles and the fan nozzles is large, the water pressure is high, and the water consumption is less.
直管排污管的排污阻力小，旋 流喷嘴、扇形喷嘴的冲洗面积大、水压高、用水量小。
The straight blow-off pipe has less blow-off resistance, the flushing area of the swirl nozzles and the fan nozzles is large, the water pressure is high, and the water consumption is less.
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