查询词典 Lens

At the beginning of the century, the mathematics and physics relevant to traditional lens design were already pretty well established, and early designs like achromatic doublets and the Petzval lens had already been developed.

上个世纪初，传统镜头设计的数学，物理框架已经建立得比较完备。早期的设计，如消色差胶合透镜，Petzval镜头已经被发展的很好了。

Use magnetic field lens again, two kinds of electron lens elaborate respectively below form and principle.

又用磁场透镜，下面分别阐述两种电子透镜的构成和原理。

Electron lens can be formed by electric field, also can form by magnetic field, in be being used actually, same picture tube uses electric field lens already.

电子透镜可由电场构成，也可由磁场构成，实际使用中，同一显像管既用电场透镜。

To make picture clear, the electron beam that must come out to be being hit from electron gun undertakes focusing is handled, let electron beam pass electron lens, be opposite with optical lens of beam of light collect action likeness, the electron beam assemble that opens scattering rises, get on fluorescent screen one shines again small spot, add the effect of scanning circuit, ability shows clear picture.

为了使图像清楚，必须对从电子枪打出来的电子束进行聚焦处理，让电子束通过电子透镜，和光学透镜对光束的聚集功能相似，把散射开的电子束会聚起来，在荧光屏上得到一个又亮又小的光点，加上扫描电路的功能，才能显示清楚的图像。

Methods With 20 postoperative samples of colon carcinoma,resin-embedded semi-thin section were prepared for observation of location under optical lens and ultrathin section under electron lens.

方法取手术后人结肠癌标本 20 例，制备树脂包埋块半薄切片，光镜观察定位及超薄切片电镜观察。

Results Under optical lens positive products of ACP reaction were brown particles scattered in cyton and process;under electron lens its positive products were black precipitates with high electron density scattered in lysosome and Golgi bodies in different shapes,and often companied by linear lysosome and some cell organs.

结果光镜下可见 ACP 反应阳性产物为棕色颗粒，散在分布于神经元的胞体及突起内；电镜可见其阳性产物为电子密度高的黑色沉淀，分布于不同形状的溶酶体及高尔基体内，并常见线状溶酶体与一些细胞器相伴行。

The photos of the sample cutoff are taken by the AMRAY-1000 scanner electron camera lens and metallographic tissues by the NEPHOTO-30 optics microscope. Besides, micro-tissues are observed by the JEM-2010F transmittal electron lens.

利用AMRAY-1000型扫描电镜拍摄试样断口照片、NEPHOTO-30光学显微镜拍摄试样的金相组织、采用JEM-2010F型透射电镜进行微组织观察。

The amount of exophoria declined with correcting lens, and it increased again when a +1.50D lens was added to the correction.

从调节和集合平衡的观点出发，青少年近视眼以戴矫正眼镜为好，正透镜的应用要采取慎重态度。

Extra Dry Hydration Oil was not tested with contact lens wearers, so it could cloud contact lens if it were applied directly in the eye.

答：该产品并无对佩戴隐形眼睛者做过专门测试。如果直接用于眼睛会导致隐形眼镜模糊不清。

Over time the natural lens of the eye, the crystalline lens, gradually loses its flexibility.

随着时间的推移眼睛的自然晶状体，晶状体，逐渐失去它的灵活性。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"