double images meaning in English

重象,复象

To his astonishment, he saw one of the double images disappear as he rotated the calcite .
使他感到意外的是当转动方解石时，双象中的一个象消失了。
Barr stround double image coincidence range finder
巴斯特双像符合测距仪
A double image watermarking algorithm based on dct transformation
域双重图像数字水印算法
Many of these double images were created anonymously , and imitations were rampant as they were distributed on puzzle cards and on popular advertisements
许多画像的作者不详,他们的作品则被模仿到拼图卡片和流行广告品上并广为流传
Myopic systemic watch is existing : memory is abate , the whole body is easy tired , physical strength drops , morpheus much dream , have a headache , nape waist ache ; eye ministry watch is existing : eye exhaustion , eyesight undertakes the gender drops , inspect content faintness , inspect content double image , eye ache bilges , the eye is urticant , dry , weep , there is black shadow flap in the eye , eye socket is swollen , paly wait
近视的全身表现有：记忆力减弱，全身易倦怠，体力下降，睡眠多梦，头痛，颈背腰部酸痛等；眼部表现有：眼疲惫,视力进行性下降，视物模糊，视物双影，眼酸痛胀，眼睛痒，干涩，流泪，眼中有黑影飘动，眼圈肿、发青等。