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- This lens can magnify 20 diameter. 这个透镜能放大20倍。
- Some adjustment of the lens may be necessary. 可能有必要调节一下镜头。
- The diameter of the tree-trunk is about 2 meters. 这树干的直径大约是2米。
- Do you have soft contact lens care product? 有没有软性隐型眼镜保养用品？
- He uses lens to make things appear clearer. 他用镜片以便看东西更清楚些。
- The lens is often used to make telescopes. 镜片常被用来做成望远镜。
- The axis of a circle is its diameter. 圆的轴线是其直径。
- Measure the diameter of this circle. 量一下这圆的直径。
- Don't smear the lens; I've just polished it. 别把镜头弄脏了，我刚刚擦过。
- We must gauge the diameter of wire first. 我们必须先测量电线的直径。
- A tube with a very small internal diameter. 毛细管一根内径十分细小的管子
- The camera lens must be screened from direct sunlight. 照相机的镜头不可受到阳光的直射。
- A close- up lens is ideal for taking close- up picture. 近摄镜用来拍特写照片最理想。
- In this operation the surgeons implant a new lens (in the eye). 医生在这次手术中给病人(眼球)植入了新的水晶体。
- lens diameter 透镜直径
- The gunsight has an infrared lens for night vision. 射击瞄准器装有用于夜间视力的红外线镜头。
- The pond has a diameter of three hundred metres. 这池塘直径有三百米。
- Just as a double convex lens enlarges, so a double concave lens reduces. 正象双凸透镜可以放大那样，双凹透镜也可以缩小。
- A circle is bisected by any diameter. 圆被任一直径二等分。
- This lens can magnify the diameter of the hair follicle by ten times. 这个透镜能放大毛囊10倍。
