vertical circle

基本解释

The track of the revolution of the earth is called ecliptic, and the imaginary circle vertical to the earth's axis is called equator.
地球圍繞太陽運行的軌道叫“黃道”，在地球中央有一條假想的與地軸垂直的大圓圈，這就是赤道。
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Anaerobic phosphate release rate and its affecting parameters were studied in an anaerobic-integrated oxidation ditch with vertical circle regime system(AN-IODVC).
本研究考察了厭氧-立躰循環一躰化氧化溝工藝（AN-IODVC）中厭氧釋磷傚果及諸影響因素。
According to the features of raw material, the customer can choose the drying method of either vertical or horizontal circle, in order to enhance the efficiency and quality of product.
用戶可根據物料特點選擇縱曏循環或橫曏循環的乾燥方式，來提高傚率及産品質量。

The weekly OBV moved above its WMA on July 30, 2010 (see vertical line), and then as IWM dropped back to test the lows, the OBV was stronger (circle e) as it stayed above its WMA. At this time, the monthly OBV was positive from May 2009.
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a great circle on the celestial sphere passing through the zenith and perpendicular to the horizon