查询词典 lens hood

A R-C system with foci of 2 m and f-number F/4 was taken for an example, the principles of stray light eliminating and evalutiong in reflective optical system was put forward. Lens hood in the main mirror, lens hood outside and window shade, lens hood in the secondly mirror were designed by CAD modeling.

以焦距为2 m，相对孔径为1/4的R-C系统为例，介绍了利用计算机仿真技术进行消杂散光设计和评价的原理，结合CAD建模进行了主镜内遮光罩、外遮光筒、次镜百叶窗式遮光罩的设计。

The lens hood is used to cover up the lens.

遮光罩是用来遮盖镜头的。

To prevent direct sunlight from entering the lens, attaching a lens hood is effective.

阻止直射阳光的进入，最有效的办法就是外接一个遮光罩。

The huge front element is impressive; you can protect it with the large lens hood, that Canon kindly includes in the $1950 price of this lens

巨大的正面因素是令人印象深刻，你可以保护罩它与大型镜头，佳能镜头，包括请在此价格的一九五〇美元

When photographing with the sun in front of you, do not assume that the lens hood will prevent direct sunlight falling onto the front element of the lens.

当与太阳在你面前拍照，不要以为镜头遮光罩可以防止阳光直射到镜头的前端元素下降。

So far, none of star sensor prototypes has been found equipped with lens hood in native missiles. For improving engineering practicability of star sensor and reducing noise of space scattering lights, designing and selecting of lens hood parameters of star sensor and engineering amelioration of prototype were brought forward, based on design principles and correlative data of foreign missile, which regard lens hood of space star sensor.

迄今为止，国内研制的导弹用星敏感器工程样机未见使用遮光罩的先例，为了提高星敏感器的工程实用性，减少空间杂散光引入的噪声，借鉴空间星敏感器遮光罩的设计原理和国外弹用星敏感器遮光罩的相关资料，提出星敏感器遮光罩的参数设计选择方案，对原理样机进行工程化改进。

Center pinch design, convenient for take the lens cap when using lens hood.

采用高质素物料制造，另附镜头盖绳，中心按掣设计，方便於使用遮光罩时取出及装上。

Our leading products cover %26ndash; remote release, infrared remote control, wireless controller, lens hood, flash diffuser, camera neck strap/hand strap/carrying case/lens pouch, flash gun accessories, eye cups etc, which cover multiple types with high quality and good design.

我司主要经营的产品有：电子快门线、红外遥控器、无线电遥控器、遮光罩、柔光罩、相机背带、手腕带、相机包、镜头包、闪光灯配件、目镜等，品种多，质量优，外型美观轻巧。

Remote release, infrared remote control, wireless controller, lens hood, flash diffuser, camera neck strap/hand strap/carrying case/lens pouch, flash gun accessories, eye cups etc, which cover multiple types with high quality and good design.

我司主要经营的产品有：电子快门线、红外遥控器、无线电遥控器、遮光罩、柔光罩、相机背带、手腕带、相机包、镜头包、闪光灯配件、目镜等，品种多，质量优，外型美观轻巧。

Our leading products cover – remote release, infrared remote control, wireless controller, lens hood, flash diffuser, camera neck strap/hand strap/carrying case/lens pouch, flash gun accessories, eye cups etc, which cover multiple types with high quality and good design.

我司主要经营的产品有：电子快门线、红外遥控器、无线电遥控器、遮光罩、柔光罩、相机背带、手腕带、相机包、镜头包、闪光灯配件、目镜等，品种多，质量优，外型美观轻巧。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。