您要查找的是不是：
- 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。
- 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。
- Don't smear the lens; I've just polished it. 别把镜头弄脏了，我刚刚擦过。
- swivel lens 转动镜头
- The camera lens must be screened from direct sunlight. 照相机的镜头不可受到阳光的直射。
- The lateral swivel of a mounted gun. 横动架起枪炮的横向转动
- A close- up lens is ideal for taking close- up picture. 近摄镜用来拍特写照片最理想。
- The swivel had been oiled to perfection. 旋轴已经上足了油。
- 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。
- She returned to the swivel chair behind her desk. 她回到桌子后面的转椅上。
- The front wheels can either swivel or be fixed. 前轮可能或旋转或是固定的。
- Ebonite swivel wide wheel industrial caster. 硬橡胶活动肥仔轮。
- Furniture castor with plastic wheel, swivel type. 活动式塑料脚轮。
- 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。
- Furniture castor with rubber wheel, swivel type. 活动式橡胶脚轮。
- Nylon swivel wide wheel industrial caster. 尼龙活动肥仔轮。
- 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。
