When the formulas are applied, the scale of the observation system due to the large focus apertureAngle must be enlarged, or else the empirical formula will be invalid.
在实际应用中，由于聚焦孔径角加大，观测系统范围也必须相应加大，否则经验公式失效。
2
The effect of some factors on the transmissivity of fiber optic image inverter is analyzed, and the relation of the transmissivity between radial position and apertureangle is given.
本文论述光纤倒像器中扭转光学纤维的形状和尺寸及其特别的传光性能。
3
The main parameters that effect horizontal resolution of migration imaging were identified as medium velocity, dominant frequency of seismic wavelet and apertureAngle of migration processing.