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- This lens can magnify 20 diameter. 这个透镜能放大20倍。
- A constant, variable, function name, or expression. 一种常数、变量、函数名或表达式。
- 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。
- Clouds cause the diffusion of light from the sun. 云使阳光漫射。
- The lens is often used to make telescopes. 镜片常被用来做成望远镜。
- The prices are variable, shop around by all means. 价格高低不一，所以一定要货比三家逐店选购。
- The temperature was a variable in the experiment. 在该实验中温度是个变量。
- Don't smear the lens; I've just polished it. 别把镜头弄脏了，我刚刚擦过。
- A finite increment in a variable. 变量增量变量的有限增量
- The speed of the toy boat is variable. 玩具船的速度是可变的。
- Winds are mainly light and variable. 风力较弱，风向多变。
- 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 programmed time delay of variable duration. 暂停，展宽一种由程序设置的可变持续时间的时间延迟
- 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。
- Insulation used to prevent heat diffusion, as from a steam pipe. 绝热材料用来防止热量散失的绝热材料，如从蒸汽输送管上
- Traditional systems have used oil diffusion pumps. 常规的系统使用油扩散泵。
- 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。
