The laser beam emitted by the laser is expanded to the cutting width required by the tipping paper via the laser beam expanding system, the expanded laser beam passes through the cylindrical surface focusing mirror and 4 focuses on the focal plane form a focal line and the tipping paper is cut off by the focal line on the focal plane.

由激光器發(fā)出的激光束經(jīng)激光擴(kuò)束系統(tǒng)將激光束擴(kuò)大至水松紙所需的切割寬度插进去很舒服视频，經(jīng)擴(kuò)束后的激光束通過柱面聚焦鏡操BBBB视频，在焦平面4聚焦形成一條聚焦線一级A片免费播放清高视频，水松紙?jiān)诮蛊矫嫔媳淮藯l激光聚焦線割斷igao视频。

The results show that due to the effect of laser beam quality on focal beam waist radius,focal angle and focal length,laser beam quality decides the beam focusing ability and the processing capacity of laser system.

結(jié)果表明，光束質(zhì)量對聚焦光束的焦斑片黄色国产毛片、聚焦角和焦深的影響不僅體現(xiàn)了激光源的可聚焦性一级片不卡网站，而且也標(biāo)志了激光源的可加工能力，這是聚焦系統(tǒng)和焦點(diǎn)位置在選擇過程中應(yīng)該考慮的重要因素色哟哟网站进入。

It's M2 factor is approaching the ideal value 1 and the beam intensity profile remains Gauss Profile. Laser beam with good propagation and focus characters. The beam can propagate a long way and can be focused with lens with long focal distance. The focal beam waist radius is 134μm, the focal distanced of the focus lens is 300mm. It's focal depth is about 5mm and the focal shift is about 1mm in the range of processing (3m).

結(jié)果表明99re这里只有是精品，Slab CO2激光器具有高光束質(zhì)量，其M2因子非常接近1的理想值欧美精品性爱；激光束具有良好的傳輸和聚焦性能欧美丝袜特黄大片，可以長距離傳輸97AAAAA免费毛片；使用焦距為300mm的聚焦鏡聚焦，聚焦光斑的束腰半徑約為134μm日韩久久久精品，光束橫截面能量分布接近理想的高斯分布在线污视频国产一区，焦深約為5mm，在加工范圍內(nèi)(3m)欧美不卡高清视频，激光束的焦點(diǎn)漂移量大約為1mm66j8在线视频观看。

At the end of this chapter, two computer programs AOGRA_SCE and CINE〓_SCE used for space charge effect calculation are briefly introduced. In Chapter 3, the different injection methods for sector focused cyclotron and the different types of inflectors for axial injection are briefly described firstly. Then the reference particle's orbit and the optical property in spiral inflector, the most common-used injection method, are studied in detail.

在本章的第4節(jié)中，介紹了兩臺強(qiáng)流扇聚焦回旋加速器（50MeV-6mA H〓超導(dǎo)扇聚焦回旋加速器和17MeV-2mA H〓扇聚焦回旋加速器）的具體設(shè)計(jì)步驟和計(jì)算結(jié)果久久91精品国产91久，討論了這兩臺扇聚焦回旋加速器中加速軌道和相空間的傳輸以及空間電荷效應(yīng)的影響日韩毛片精品一区二区。

Depending on the character of Lamb wave propagation , thedamage scat tering signals were time reversed and reemit ted to the damage , and then they will arrive at the damage synchronously so that the damage scat tering signal caught again will be amplified. Details about the time reversal amplifying process were analyzed and given. Based on the focalization ability of time reversal theory to the wave origin , the wave propagation was rebuilt by an image method which displays the damage as the focusing point .

根據(jù)信號傳播自身的特性，研究采用時間反轉(zhuǎn)聚焦方法使損傷散射信號能量疊加放大欧洲视频亚洲视频，從而提高信號的信噪比爆操女人，分析給出了具體的損傷信號時間反轉(zhuǎn)聚焦增強(qiáng)過程；利用時間反轉(zhuǎn)法對波源的自適應(yīng)聚焦能力色八A级在线观看，重建信號傳播波動圖农村老熟女乱子视频，通過信號聚焦顯示損傷位置和區(qū)域。

This study used the pick-up head from the commercial DVD-ROM as the basis for optical path, and drilled a 2mm hole on the focusing object lens. After combined with the design of a beams plitter, the laser beam source of the two DVD formed two in-line laser beams. One laser beam passed through the undrilled part, and focused on the surface of the object to be tested, in order to measure the displacement variance of the surface.

於三自由光學(xué)測探頭的研制上亚洲免费性交，則將DVD 探頭之聚焦物鏡做一2mm 的穿孔浮力国产第三页草草影院，於搭配一分光鏡的設(shè)計(jì)后，使個DVD 的光源形成同軸光束又黄又高潮水又多的视频，將其中ㄧ光束經(jīng)由聚焦物鏡未穿孔部分欧美性色欧美A在线播放秒播，聚焦於待測物表面，用以測待測物表面的位移變化黄色网站视频免费直接看好爽，另一光束則穿透過聚焦物鏡穿孔部分岛国艹在线，直接將光束投射至待測物表面，作為待測物表面之個角的變化測91手机91视频。

From the above seems to show the failure, the author estimated that the fault is mostly the work of the subsidiary CRT circuit damage occurred because the cathode-ray tube voltage of the focus is very prone to failure similar to the above phenomenon, the phenomenon that gave rise to such failure is due mainly to display work over time, then the CRT focus very near the jack attached to a lot of dust very easily, which encountered wet dust easily lead to the air tubes of focus very significantly decrease the performance of socket contacts, then a cathode-ray tube focus to the natural voltage decline will be affected down, so that we could monitor the performance will be prone to poor focus, image display is a relatively vague.

從上面的顯示故障現(xiàn)象來看黄色视频毛片在线看，筆者估計(jì)該故障現(xiàn)象多半是顯像管附屬的工作電路發(fā)生了損壞，因?yàn)轱@像管的聚焦極電壓十分容易發(fā)生類似上面的故障現(xiàn)象日本特級片，引起這種故障現(xiàn)象的原因主要是顯示器工作時間一長ri99av，那么顯像管的聚焦極插孔附近很容易附著不少灰塵，這些灰塵遇到潮濕的空氣后容易導(dǎo)致顯像管的聚焦極插孔接觸性能大大下降特一级欧美AAAAAA免费观看，那么一來顯像管的聚焦極電壓自然就會受到影響而下降下來国家一级无码黄片，這樣的話顯示器也就容易出現(xiàn)聚焦性能不好、圖象顯示比較模糊的現(xiàn)象了日韩在线观看网红自拍视频网站大全。

This paper analyzed the advantage and disadvantage of three sound wave focus methods, that is lens focus, curved autofocus, and phased-array focus on the base of draw lessons from supersonic focus technic, consequently preferred and designed the infrasonic phased-array focus system.

文中在借鑒超聲波聚焦技術(shù)的基礎(chǔ)上亚洲免费人成视频观看，分析了透鏡聚焦、曲面自聚焦色综合视频导航、相控陣聚焦等三種聲波聚焦方法的利與弊91久久精品无码一区二区毛片，從而選用和設(shè)計(jì)了次聲相控陣聚焦系統(tǒng)A片在线观看网站免费不卡色欲。

By adjusting the positions and angles of the two DVD optical pick-up heads, the relative distance of the two laser spots can be equivalent to one quarter of the grating pitch. When the grating moves, the surface profile of the grating can be measure directly, in order to obtain the two quadrature sinusoidal signals. Then by counting the zero crossing of these two quadrature sinusoidal signals and calculating the interpolation value of these two quadrature sinusoidal signals, the moving direction and moving displacement value of the grating can be obtained.

采用兩個光學(xué)讀取頭，且兩個光學(xué)讀取頭共用同一分光鏡與同一聚焦物鏡91视频免费播放，於搭配光路的設(shè)計(jì)午夜毛片www，可使兩個光學(xué)讀取頭之光束打入同一聚焦物鏡，藉由調(diào)整兩個DVD光學(xué)讀取頭的位置與角度无码人妻精品一区二区不卡，使聚焦物鏡聚焦的兩相近聚焦光點(diǎn)的距離相等於四分之ㄧ光柵尺間距二级黄A毛片免费视频观看，當(dāng)光柵尺移動時，可直接量測光柵尺的表面輪廓變化91热在线视频观看，以獲得一組正交的弦波訊號黄色视频海外免费，繼而利用訊號四分割與細(xì)分割處理免费无码毛片A视频，計(jì)算出光柵尺之移動方向與移動量亚洲精品综合久久国产二区。

The focusing beam radius' ratio between the telescope lens compound system and the single lens increases via length (70~400mm) increasing, and the maximum ratio is 30, meanwhile the ratio between the telescope-lens compound system and the single lens decreases via length (70-400 mm) shorting, but the maximum difference of the focusing beam radius' is 0.043μm.

結(jié)果表明，隨著距離(70~400mm)的增加GIAO视频免费观看，兩者的聚焦效果相差增大欧美乱论电影，最大為30倍；隨著距離(70~400mm)的減小在线看自拍，兩者的聚焦效果相差減衱ww.色一区二区。唤?jīng)望遠(yuǎn)鏡和薄聚焦透鏡組合系統(tǒng)聚焦的高斯光束束腰處光斑半徑隨距離(70~400mm)變化的最大值為0.043μm一级黄色视频无码。

focal circle：焦圓,聚焦圓,聚焦圓

focal chord 焦弦 | focal circle 焦圓,聚焦圓,聚焦圓 | focal date 假定起息日

point of view focalization narrator zero focalizationinner focalization outer focalization：視點(diǎn) 聚焦 敘述者 零聚焦 內(nèi)聚焦 外聚焦

求交:Crossing | 視點(diǎn) 聚焦 敘述者 零聚焦 內(nèi)聚焦 外聚焦:point of view focalization narrator zero focalizationinner focalization outer focalization | 配時:Signal Timing

focuser：聚焦器

其次是望遠(yuǎn)鏡聚焦器 (focuser) 的質(zhì)素. 若有興趣天文攝影,這就更加重要. 現(xiàn)時流行的電荷耦合器 (CCD camera) 一般都比較重,對經(jīng)緯儀及聚焦器要求甚高. 我建議最好選用兩吋口徑或以上的聚焦器. 平價的望遠(yuǎn)鏡可能鏡質(zhì)不錯,

focuser：聚焦放大鏡 聚焦裝置

Yentai 煙臺(中國山東省一港市) | focuser 聚焦放大鏡 聚焦裝置 | electron emitter 電子發(fā)射體

focalizer focuser：聚焦器

聚焦屏 focusing screen | 聚焦器 focalizer focuser | 聚焦石英燈 focusing quartz light

focused jet stream：聚焦射流

focused induction logging system 聚焦感應(yīng)測井系統(tǒng) | focused jet stream 聚焦射流 | focused log zero 聚焦測井零線

single-focusing mass spectrograph：單聚焦質(zhì)譜儀

single focusing 單聚焦 | single-focusing mass spectrograph 單聚焦質(zhì)譜儀 | single-focusing mass spectrometer 單聚焦質(zhì)譜計(jì)

self-focusing optical fibre：自聚焦光覺纖維

self-focusing 自聚焦 | self-focusing optical fibre 自聚焦光覺纖維 | self-focusing threshold 自聚焦閾值

Small-scale self-focusing：小尺度自聚焦

自聚焦透鏡:self-focusing lens | 小尺度自聚焦:small-scale self focusing | 靜電聚焦系統(tǒng):Electrostatics focusing system

focusing glass：圖像聚焦檢查鏡

focusing foil ==> 聚焦箔,聚焦箔 | focusing glass ==> 圖像聚焦檢查鏡 | focusing laser Doppler velocimeter ==> 聚焦激光多普勒測速計(jì),聚焦激光多普勒測速計(jì)