前角取零度或负值也是可能的。
目前有关财务管理书籍中所分析的杠杆度都是正值，但现实中企业杠杆度极有可能为负值。
The enterprise leverage analyzed in concerned financial management books is always positive, but in practice, enterprise leverage is probably a negative value.
而CFAR检测方法只利用了目标的局部对比度信息，不存在负值效应，但在强杂波环境中的检测结果存在很高的虚警。
While the CFAR method only using the local contract information is not symmetric, it has a high false alarm in the strong clutter environment.
高层螺旋度负值的演变与沙尘暴的出现有一定的对应关系。
There was definite relationship between the evolvement of helicity's negative value at higher…
沙尘暴区上空垂直螺旋度的垂直分布为中高层负值，低层正值。
The distribution of helicity over the sandstorm area was negative at higher levels and positive at lower levels.
偏度大部分呈正偏，峭度大部分为负值，说明种群直径分布范围较大，中径材占多数。
Most skewnesses were positive, most kurtosises were negative, which showed that diameter distribution range of population with middle-diameter timber …
高低层散度都为负值中心；
结果表明： 热带气旋中心附近存在非热成风涡度负值中心，有利于近海热带气旋突然增强；
Results show that the existing of a negative non-thermal wind vorticity center near the TC center is favorable to its offshore rapid intensification.
结果表明： 热带气旋中心附近存在非热成风涡度负值中心，有利于近海热带气旋突然增强；
Results show that the existing of a negative non-thermal wind vorticity center near the TC center is favorable to its offshore rapid intensification.
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