Experiments show a strong effect on the measured value if collimation angle is increased.实验表明,准光角增大会对测定值产生很大的影响.The error introduced by a finite collimation angle is a systematic one in apparent transmission.一定准光间所带来的误差是...

collimation的音标：collimation的英式发音音标为：[kɒlɪ'meɪʃən]collimation的美式发音音标为：[kɒlɪ'meɪʃən]...

n.瞄准，视准...