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- cement bifocal lens 粘合双焦点透镜
- Focusing properties of Gaussian beams passing through a bifocal lens[J]. 引用该论文 季小玲;季小玲;吕百达.
- Franklin's bifocal lens spectacles 弗兰克林(氏)眼镜:双焦点眼镜
- Focusing properties of Gaussian beams passing through a bifocal lens 高斯光束通过双焦透镜的聚焦特性
- This lens can magnify 20 diameter. 这个透镜能放大20倍。
- The building is made of hydraulic cement. 大楼是用水硬水泥建造的。
- Cement output next year would be57 million tons. 明年的水泥产量(将)有5700万吨。
- Some adjustment of the lens may be necessary. 可能有必要调节一下镜头。
- Do you have soft contact lens care product? 有没有软性隐型眼镜保养用品？
- The front of the brick house was faced with cement. 这栋砖房的正面抹了一层水泥。
- He uses lens to make things appear clearer. 他用镜片以便看东西更清楚些。
- Our object is to further cement trade relations. 我们的目标是进一步加强贸易关系。
- The lens is often used to make telescopes. 镜片常被用来做成望远镜。
- Concrete is made of cement, sand, stone and water. 混凝土是由水泥，砂子石头和水混合做的。
- The sack of cement hit the ground with a thump. 水泥袋砰的一声落在地上。
- Don't smear the lens; I've just polished it. 别把镜头弄脏了，我刚刚擦过。
- The cement will set in a few hours. 水泥几小时后就会凝固。
- complete vision bifocal lens 全视双焦点透镜
- The camera lens must be screened from direct sunlight. 照相机的镜头不可受到阳光的直射。
- bifocal lens 双焦镜,双焦点透镜,双焦透镜
