椭圆度的英文
ellipticity
oblateness
out of roundness
outofroundness
+更多解释...
例句与用法
更多例句： 下一页- Laser ellipseness measuring instrument
激光椭圆度测量仪 - Series analysis showed that the critical buckling pressure of cylinder under external pressure could be obviously decreased with the increase of ellipticity of cylinders
系列计算表明，外压圆筒体屈曲临界压力值会随筒体椭圆度的增加而明显降低。 - Based on anal sis on electric logging curve , it is proposed to identify low - resistivity layer with curve - quantified parameters , such as rad and rat , and this method has satisfied effect
在分析电测曲线形态的基础上，提出了利用饱满系数( rad ) 、椭圆度( rat )等曲线形态量化参数自动识别低阻油层的方法，取得了令人满意的应用效果。 - Therefore , for 980nm pumping , a significant disadvantage is the low coupling efficiency to the single mode fiber because of the mold field mismatch between the elliptical laser beam and the circularly symmetrical fiber mode and also because of the phase mismatch
但是对于像980nm泵浦激光器发出的激光来说，由于特殊的物理结构，使得激光光束具有高度的椭圆性。对于椭圆度高的激光光束和单模光纤耦合的报道不是很多。 - The outline of fiber ' s tip has very great influence on the coupling efficiency . it is reported , using the way of grinding and melting to form a microlens on the fiber ' s tip , can increase fiber ' s numerical aperture , reduce the ellipticity of laser , and improve coupling efficiency
光纤端面的形状对耦合效率有很大的影响，有文献报道，采用抛磨烧熔等加工方法，可在光纤端面形成一个微透镜，增大光纤的数值孔径，对入射激光进行椭圆度校正，从而提高耦合效率。
