parallel: adj.1.平行的；并行的 (to; with); 【电学】并联的。2.同一方向的，同一目的的。3.相同的，同样的，相似的，对应的。短语和例子a parallel instance [case] 同样的例子[情况]。 His prudence is parallel to his zeal. 他固然谨慎，也同样热心。 run parallel with 和…平行。n.1.平
The condition of the normal eye when parallel rays are focused exactly on the retina and vision is perfect 屈光正常当平行光线恰好聚焦于视网膜并形成清晰视觉时正常眼睛的状态
2.
An analysis is made about descartes rays of transparent round - section fibers - a special internal surface reflection rays of the fiber when parallel rays strike the fibers perpendicularly to fiber axis 摘要分析了透明圆形截面纤维在垂直纤维轴光线照射时纱维内表面反射光的一种特殊现象笛卡尔线现象。
