聚光角 的英文怎麼說
中文拼音 [jùguāngjiǎo]
聚光角
英文
hotspot-
If it is focused. so the boiloff and cautery of focus tissue can be used in the therapy. also if it isn t focused, the laser radiating focus tissue can bring about concretion effect
激光治療儀的發散角極小，能量密度高，經聚焦后，可達每平方厘米幾千瓦的功率， co2激光治療儀可用於對病灶組織的汽化，燒灼或切割病灶組織，所以co2激光治療儀也稱謂激光刀。In this thesis, the development of emulsion polymerization theory and related new technologies are comprehensively reviewed, and the synthetic technologies of acrylate latex modified by organosilicon both at home and abroad are also reviewed. based on the current development and research in this field, attentions of this study are focused on three ways for preparing novel acrylate latexes modified by organosilicons, that is, 1 ) the acrylate monomers are copolymerized with unsaturated silicons by emulsion copolymerization ; 2 ) a new latex with microphase separation morphology is synthesized, which shows a core - shell structure character ; 3 ) soap - free polymerization is explored for preparing a higher - performance latex using an unsaturated silicon monomer, different acrylates and a reactive emulsifier. by using techniques of delaying addition of organosilicon monomer and a hydrolysis inhibitor, the hydrolysis and condensation of 3 - ( trimethoxysilyl ) propyl methacrylate during polymerization can be effectively prevented, as a result, organosilicon content in the macromolecular chain is increased
同時採用有機硅單體延遲滴加及添加水解抑制劑等技術，有效防止了-甲基丙烯酰氧基丙基三甲氧基硅烷在乳液聚合過程中的過渡水解及縮合反應，提高了聚合物大分子鏈中有機硅鏈節的含量；利用紅外光譜與差示掃描量熱儀對產物分子結構進行了表徵，並通過對共聚產物力學和吸水率的測試，證實了本研究所制備的有機硅改性丙烯酸酯共聚物具有比純丙烯酸酯聚合物更優良的力學及耐水性能；從分子設計角度出發，利用醇解反應合成出水解、縮合反應速率較慢的兩種新型不飽和有機硅單體： ?甲基丙烯酰氧基丙基三乙氧基硅烷和?甲基丙烯酰氧基丙基三異丙氧基硅烷；利用核磁共振對新型硅烷單體結構進行了證實；研究表明利用新型硅烷單體可以制備出高硅烷含量的有機硅改性丙烯酸酯乳液，且其聚合產物具有較高的力學及耐水性能。A lone spotlight focused on the corner of the red drapes, which was emblazoned with the words dai shi ying xiong ( warriors of earth ), the concert ' s theme
一道聚光燈集中射在印有該演唱會主題蓋世英雄字樣的紅幕的一角。Abstract : the far - field spot characteristics of laser converted by random phase plate are analyzed theoretically, including the shape, size, rotational symmetry and diffractive efficiency of the spots, as well as the distribution of subsidiary spot. by comparing the influence of phase element shape ( triangular, square and hexagonal ) on the characteristics, we found that the random phase plate with hexagonal array structure is more suitable for the beam smoothing in laser fusion
文摘:從理論上分析了激光經隨機位相板變換后在遠場的光斑特性（包括光斑的形狀、大小、旋轉對稱性、衍射效率以及旁瓣分佈） ，通過比較三種形狀位相元（等邊三角形、正方形和正六邊形）的遠場光斑特性，得知正六邊形位相元結構的隨機位相板更適合於激光聚變中的束勻化。In a camera, light rays pass through a series of lenses that focus images onto film. in a healthy eye, light rays pass through the cornea and lens, which focuses images onto the retina, a layer of light - sensing cells lining the back of the eye
在照相機中，光線經過一系列的透鏡，把圖像聚焦在膠片上，在健康的眼睛中，光線通過角膜和透鏡，把圖像聚焦到視網膜上，而視網膜是一層排列在眼底的光敏單元。Beam angles of spotlights
聚光燈光束角度Early in the morning of october 15, 1997, standing in the dark on the edge of an alligator - infested inlet near cape canaveral, fla., i watched with thousands of others as a tiny flame appeared beneath a rocket illuminated by floodlights on a launchpad several miles away
1997年10月15日清晨，天色猶暗，我站在美國弗羅里達州卡那維爾角附近一個鱷魚群居的海口邊緣，和好幾千人一起看著數英裡外的發射臺上，被聚光燈照亮的火箭下射出一束細小的火焰。Since the dichromated gelatin has a higher diffraction efficiency in all holographic recording materials, the aim of this research is to use dichromated gelatin as the recording material and to make use of the principle of holography to design holographic optical components, especially in fabrication procedure of dichromated gelatin film and in experimental technique to form a high diffraction efficiency using different angular exposure method
為了產生優質的聚焦能力與效率，本研究採用目前具有最高繞射效率（ 80 ~ 90 % ）的重鉻酸明膠材料作為感光劑，除了自行調制藥劑比例成分，並依嚴格的製作步製成重鉻酸明膠全像片外，並採用不同角度重覆曝光方式改良干涉式波帶板無法自動追蹤的缺點，經過多次試驗與改進，藉以形成具備高繞射效率和自動追蹤功能的全像光學波帶板。This microscope is provided with achromatic objectives, wide field eyepieces, abbe condenser, adjustable built ? in light source, and coaxial coarse and fine adjustment with focus stop. this microscope with his wide field eyepiece gives a nice and sharp image and is designed in a very modem way, it is designed for clinical experiments and classroom demonstration in medical and hygienic establishments, chemical laboratory, agricultural scientific research nets, research institutes and colleges as well as for the routine examination and research purpose in bioloy, bacteriology, cytology and pharmaceutical chemistry
本顯微鏡採用消色差物鏡、廣角目鏡、阿貝聚光鏡，連續可調的人工光源及帶有限位置的同軸粗微動機構，視場廣闊、成象清晰、設計先進，可供醫療衛生機構、化學試驗室、農業科研系統、研究所及高等院校臨床試驗和教學示範，以及在生物學、細菌學、細胞學和藥物化學等領域作常規檢查和研究。In the experiment, we use the he - ne laser and the semiconductor laser as the source, record the bessel beam patterns behind the axicon by using a digital camera and a microscope, measure the radius of the bessel beam central spot by film - scanning and measure the effect of both the radius of the aperture and the open angle of the axicon on the maximum non - diffraction distance. the experiments show that a specific propagating range has constant power and the beam has a bessel - like distribution in this range. the results agree with the beam corresponding to a diffraction free beam
同時我們還採用膠片掃描的方法測量了無衍射光束的中心光斑尺寸，測量了不同光闌孔徑和不同稜角情況下的最大無衍射距離和傳播軸附近橫截面內微小光孔中的光強，實驗結果顯示當激光光束經過軸棱錐轉換後有一段距離功率變化很小，且分佈近似貝塞爾分佈，符合無衍射光束的特性;經過聚焦后，呈現三維分佈中空的光束bottlebeam ，實驗結果與理論分析基本吻合。This creature can be summoned anywhere on the map and will pop - up out of the ground along with a pool of water ( presumably to keep his delicate skin moist ) and thrash about with his tentacles to cause a huge amount of area effect damage to enemies grouped in one place
這個生物可以在地圖的任何地方被召喚出來，它會伴隨著一個水池從地面鉆出（估計是為了讓敏感的皮膚保持光滑）並用觸角給予敵人巨大的傷害，特別是聚集在一個地方的敵人。My father was endeavoring to pierce with his eager looks the remotest verge of the horizon, examining attentively every black speck which appeared on the lake, while my mother, reclining by his side, rested her head on his shoulder, and i played at his feet, admiring everything i saw with that unsophisticated innocence of childhood which throws a charm round objects insignificant in themselves, but which in its eyes are invested with the greatest importance. the heights of pindus towered above us ; the castle of yanina rose white and angular from the blue waters of the lake, and the immense masses of black vegetation which, viewed in the distance, gave the idea of lichens clinging to the rocks, were in reality gigantic fir - trees and myrtles
我的父親坐在一個大洞前面，目光凝視遙遠的地平線，聚精會神地仔細觀察湖面上的每一個黑點，我母親靠在他身邊，頭枕著他的肩胛，而我就在他的腳邊玩耍，帶著天真的好奇心眺望著巍然屹立在地平線上的賓特斯山，那白皚皚稜角分明從蔚藍的湖面上高高聳起來的亞尼納堡，以及那一大片黯黑青翠從遠處看以為是附著在巖石上的苔蘚實際上卻是高大的樅樹和桃金娘。The intervening matter between the source and the observer gravitationally deflects and focuses the light bundle, increasing the apparent angular size of the source.
光源與觀測者之間的物質對光束產生引力偏折和聚焦作用，使光源的視角徑加大。Measuring molecular weight of polyacrylamide by little angle laser light scatter method
激光小角光散射法測定水體系聚丙烯酰胺分子量With the development of science and technology, the need of micro system is more and more urgent in many technical fields, such as various operation of cell and polymerized substances, micro surgery, scanning probe microscope ( spm ), butting optical fiber, fine manufacturing etc. with the development of micro - technology, micro mechanism, which has the character of micro size or micro motion is new high technology from microcosmic point of view understanding and reconstructing the world, micro mechanism technology is important means for researching nanotechnology, so the micro stereo vision ( msv ) techniques are demanded urgently in microcosmic domain
隨著科學技術的發展，許多領域越來越迫切地需要微型系統或微動系統，如生物細胞、聚合物的各種操作、微外科手術、掃描探針顯微鏡spm 、光纖對接和微細加工等；而且隨著微技術的不斷發展，以形狀尺寸微小、操作尺度極小為特徵的微機械已成為人們從微觀角度認識和改造客觀世界的一種高新技術；微機械技術還有望成為研究納米技術的重要手段，因此在微觀領域迫切要求顯微立體視覺技術的發展。Angle of ustment
聚光燈的調整角度The interface behavior between essence and ethylene - vinyl acetate copolymer pallets was studied so that necessary data were obtained to guide the preparation of fragrant masterbatch. the adsorption type and wettability between essence and the copolymer pallets were analysed by measurements of fourier transform infrared spectrum, surface tension, contact angle and specific surface area. the technical factors affecting absorptivity such as the charge ratio, temperature, pressure and stirring speed were studied by series of adsorption experiments. the results showed that the adsorption of essence on the surface of ethylene - vinyl acetate copolymer pallets is physical in nature. essence couldn ' t moisten the surface of ethylene - vinyl acetate copolymer pallets absolutely, but it could be soaked into the surface of the pallets partly. adsorptivity could be increased by enhancing the temperature, pressure and stirring speed, but the extension of adsorption time had little influence on adsorptivity
研究了香精與乙烯/醋酸乙烯共聚物粒子之間的界面行為，以便為香型母粒的制備提供必要的理論依據.利用傅立葉變換紅外光譜、表面張力、接觸角及比表面面積等測定手段，分析了香精與載體之間的吸附類型和潤濕作用.並通過一系列吸附實驗，討論了配料比、溫度、壓力、攪拌等工藝條件對吸附量的影響.結果表明，香精在乙烯/醋酸乙烯共聚物粒子表面的吸附為物理吸附；香精無法完全潤濕載體粒子表面，但可以對其形成部分浸潤；提高溫度、壓力、攪拌速度可以增加吸附量，而延長吸附時間對增加吸附量貢獻不大Abstract : the interface behavior between essence and ethylene - vinyl acetate copolymer pallets was studied so that necessary data were obtained to guide the preparation of fragrant masterbatch. the adsorption type and wettability between essence and the copolymer pallets were analysed by measurements of fourier transform infrared spectrum, surface tension, contact angle and specific surface area. the technical factors affecting absorptivity such as the charge ratio, temperature, pressure and stirring speed were studied by series of adsorption experiments. the results showed that the adsorption of essence on the surface of ethylene - vinyl acetate copolymer pallets is physical in nature. essence couldn ' t moisten the surface of ethylene - vinyl acetate copolymer pallets absolutely, but it could be soaked into the surface of the pallets partly. adsorptivity could be increased by enhancing the temperature, pressure and stirring speed, but the extension of adsorption time had little influence on adsorptivity
文摘:研究了香精與乙烯/醋酸乙烯共聚物粒子之間的界面行為，以便為香型母粒的制備提供必要的理論依據.利用傅立葉變換紅外光譜、表面張力、接觸角及比表面面積等測定手段，分析了香精與載體之間的吸附類型和潤濕作用.並通過一系列吸附實驗，討論了配料比、溫度、壓力、攪拌等工藝條件對吸附量的影響.結果表明，香精在乙烯/醋酸乙烯共聚物粒子表面的吸附為物理吸附；香精無法完全潤濕載體粒子表面，但可以對其形成部分浸潤；提高溫度、壓力、攪拌速度可以增加吸附量，而延長吸附時間對增加吸附量貢獻不大At one corner, where the foliage became so thick as almost to shut out day, a large stone bench and sundry rustic seats indicated that this sheltered spot was either in general favor or particular use by some inhabitant of the house, which was faintly discernible through the dense mass of verdure that partially concealed it, though situated but a hundred paces off
花園里有一角枝葉極其茂密，幾乎把陽光都關在了外面，這兒有一條大石凳和各種各樣農家風味的坐椅，表明這個隱秘的去處是一個聚會的地點，或是這大廈里某位主人翁所心愛的靜居處，大廈離這兒雖只有一百步左右，但從茂密的綠葉叢中望出去，卻只能看到一個極模糊的影子。The results show that radius and position of focal beam waist, focal angle and focal depth describe focal beam properties. they are determined by waist and rayleigh length of beam before focusing, the position and focal length of focus mirror
聚焦光束束腰位置和半徑、聚焦角、焦深、焦點偏移量以及焦點漂移量是描述光束聚焦特性的主要參數，它們由四個參量共同決定，分別為聚焦前光束的束腰半徑、瑞利長度和聚焦鏡的焦距以及聚焦鏡到光束束腰位置的距離。分享友人