zero variation

基本解释

Actual pitch variation between any two adjacent teeth. In the ideal case, the pitch variation error will be zero.
兩個相鄰的齒之間實際的周節變動。在理想的情況下，周節變動誤差是。
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In this paper, after detailed study of the variation of zero-sequence currents during arcing fault, the disadvantageous effects of arcing on the accuracy of fault line selection are listed.
文中在充分研究電弧故障暫態零序電流變化的基礎上，指出電弧因素對故障選線準確性的影響。
The result of analysis about CV (coefficient of variation) in R_1 generation suggested that variation in zero point for 1st branches was the highest, and it's frequency of variation was 44.54%;
莖尖途逕形成的再生植株R_1代變異系數分析發現：在一次有傚枝起點上表現出的差異最大，變異頻率爲44.54%；

But Cochrane finds that cash flow variation accounts for approximately zero percent of market variation.
FORBES: John Cochrane's Unpleasant Fiscal Arithmetic