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focal distance

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UK 
  • na.【物】焦距
  • Web焦点距离；透镜的焦距；对焦焦距

E-C

Web Definition

na.
1.
【物】焦距

Sample Sentence

Definition:
AllAll,焦距焦距,焦点距离焦点距离,透镜的焦距透镜的焦距,对焦焦距对焦焦距
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard
1.
In measuring the focal distance of lens, the experimental accuracy is often affected by the poor quality in the formation of images.
在测量透镜焦距时，往往由于成像质量差而影响实验的精度。
zài cè liáng tòu jìng jiāo jù shí , wǎng wǎng yóu yú chéng xiàng zhì liàng chà ér yǐng xiǎng shí yàn de jīng dù 。
www.dictall.com
2.
The eye that has no focal distance voicelessly opens, and northern wild strong eyes four eyes are inverse.
毫无焦距的眼，静静的张开，和北野烈的眼眸四目相对。
háo wú jiāo jù de yǎn , jìng jìng de zhāng kāi , hé běi yě liè de yǎn móu sì mù xiāng duì 。
lionwind990718.sclub.tw
3.
experience, the authors introduce basic operations, choice of film, regulation of focal distance and exposure, and choice of color filter.
笔者以自己多年显微摄影工作之经验，就该技术的基本操作、胶片选择、焦距和曝光调节、滤色片选择等诸多技术要点作了介绍。
bǐ zhě yǐ zì jǐ duō nián xiǎn wēi shè yǐng gōng zuò zhī jīng yàn , jiù gāi jì shù de jī běn cāo zuò 、 jiāo piàn xuǎn zé 、 jiāo jù hé bào guāng tiáo jié 、 lǜ sè piàn xuǎn zé děng zhū duō jì shù yào diǎn zuò le jiè shào 。
dictsearch.appspot.com
4.
The authors have reported two methods for measuring the efficient focal distance of the laser rod lenses.
提出几种计算和测量激光棒负透镜等效焦距的方法。
tí chū jǐ zhǒng jì suàn hé cè liáng jī guāng bàng fù tòu jìng děng xiào jiāo jù de fāng fǎ 。
www.dictall.com
5.
Design of Annular Lens Dark Field Vertical Illumination System and Its Focal Distance Offset Characteristics
环形透镜暗场落射照明系统设计及其焦移特性的研究
huán xíng tòu jìng àn chǎng luò shè zhào míng xì tǒng shè jì jí qí jiāo yí tè xìng de yán jiū
ilib.cn
6.
Design method of the ring-focus antenna with a variable focal distance for forming an elliptic beam
椭圆波束变焦距环焦天线的设计方法
tuǒ yuán bō shù biàn jiāo jù huán jiāo tiān xiàn de shè jì fāng fǎ
www.ilib.cn
7.
"Focal distance" indicates the distance from radiographic source center to the film;
“焦距”为射线源中心到胶片的距离；
" jiāo jù " wèi shè xiàn yuán zhōng xīn dào jiāo piàn de jù lí ;
z.tougao98.com
8.
the optimal focal distance of the main body is obtained and the digital image is shot;
获得该主体的最佳焦距，并拍摄一数字图像；
huò de gāi zhǔ tǐ de zuì jiā jiāo jù , bìng pāi shè yī shù zì tú xiàng ;
ip.com
9.
Using Spectrometer to Measure with Precision the Focal Distance of Concave Mirror
用分光仪精确测定凹透镜焦距
yòng fēn guāng yí jīng què cè dìng āo tòu jìng jiāo jù
www.ilib.cn
10.
Measurement of Lens Focal Distance: Using a Spectrum Interferometer Based on Fractional Fourier Transform
分数傅里叶变换频谱干涉法测量透镜焦距
fēn shù fù lǐ yè biàn huàn pín pǔ gān shè fǎ cè liáng tòu jìng jiāo jù
www.opticsjournal.net
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